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Olajide Olayinka Williams "JJ" Olatunji (born 19 June 1993), better known by his online alias KSI, is an English influencer, professional boxer and musician. He is a co-founding member of YouTube group the Sidemen, the CEO of Misfits Boxing and co-owner of several businesses, including Prime Hydration and Lunchly.

Born in London to parents of Yoruba heritage and raised in Watford, KSI was privately educated at Berkhamsted School. He registered his main YouTube channel ''KSI''—then known as ''KSIOlajidebt''—in 2009 and built a following through his commentary videos of the ''FIFA'' video game series. His content later diversified to include vlogs and comedic skits. In 2019, he was ranked second by ''The Sunday Times'' in its list of most influential online creators in the United Kingdom''.'' In 2021, he was listed in the ''Europe Entertainment'' category of ''Forbes'' 30 Under 30; he was later ranked by ''Forbes'' as the second-top creator of 2023. As of January 2025, he has over 44 million subscribers and 14 billion video views across his three active YouTube channels.

Creating hip-hop music as early as 2011, he first achieved commercial success with "Lamborghini" (featuring P Money) in 2015. His debut EP, '' Keep Up'' (2016), topped the UK R&B Albums Chart. He released his debut studio album, ''Dissimulation'', in 2020, which peaked at number two on the UK Albums Chart. His second studio album, ''All Over the Place'' (2021), debuted at number one and was certified platinum by the BPI; its lead singles "Don't Play" (with Anne-Marie and Digital Farm Animals) and "Holiday" both debuted at number two on the UK Singles Chart and were nominated for Song of the Year at the Brit Awards. He has achieved fourteen top 40 singles in the United Kingdom, with seven peaking in the top 10. He received the Brit Billion Award in 2024, for amassing over one billion music streams in the United Kingdom. He also starred in the direct-to-video comedy film '' Laid in America'' (2016), and has been the subject of multiple documentaries, including Amazon Prime Video's '' In Real Life'' (2023).

He was involved in a white-collar boxing match against Joe Weller in February 2018. Two further boxing events against American YouTuber Logan Paul took place, the second of which was a professional bout in which he won via split decision in November 2019. In August 2022, he fought two people in the same night, defeating rapper Swarmz and professional boxer Luis Alcaraz Pineda. In 2023, he fought FaZe Temperrr in January, Joe Fournier in May, and Tommy Fury in October, which he lost via unanimous decision.

Early life

Olajide Olayinka Williams Olatunji was born on 19 June 1993 in London and was raised in Watford, Hertfordshire. His father, Olajide Olatunji, was born in Ibadan, Nigeria. His mother, Olayinka Olatunji (née Atinuke), is from Islington, London. He and his parents are from the Yoruba ethnic group. He was educated at Reddiford School in Pinner and Berkhamsted School in Berkhamsted, where he met future collaborator and Sidemen member Simon Minter.

KSI's younger brother, , is also a YouTuber previously known as ''ComedyShortsGamer'', and professional boxer. The brothers ranked first and second respectively as the "UK's Most Influential YouTube Creators" by ''Tubular Labs'' in 2015.

YouTube and online career

2008–2013: Beginnings and ''FIFA'' videos

KSI registered his first account on YouTube under the username "JideJunior" in 2008 while in his early teens. He registered his current YouTube account on 24 July 2009 under the name KSI Olajide BT, where he uploaded gaming–commentary videos of the ''FIFA'' video game series from his bedroom at his parents' house in Watford. "KSI" stands for Knowledge Strength Integrity, which was taken from a Halo clan.

He dropped out of sixth form college to pursue his YouTube career once he was earning steady monthly revenue from his uploads. In an interview in 2014, he recounted asking his teacher whether he should drop-out. His teacher asked how much KSI was making from YouTube, to which KSI answered, "around £1,500 a month", which was more than his teacher earned. His parents initially disapproved, but later became supportive and featured in a number of his videos. KSI later uploaded more vlog-style content and played a variety of games and in 2012, the channel reached a million subscribers.

KSI's rise to fame was not without controversy, with him being widely criticised for his self-described 'rape-face', a recurring joke on his channel during 2012 and 2013. He was the centre of a controversy following third-party allegations of sexual harassment of female staff at a ''Eurogamer'' event in 2012, that went so far as accusing him of sexual assaulting a spokesmodel Brandy Brewer, despite her tweeting that she consented to the motorboat, writing, "it's called comedy……relax". As a result, Microsoft cut ties with KSI and he was banned from ''Eurogamer'' events. KSI subsequently apologised "for any offence the video of 15 months ago may have caused in the short time it was on his YouTube channel, references to it since and subsequently used by other people" and stated his desire to move on from the incident and "be judged on the great content and value he gives to brands and partners, without controversy."

2013–present: Sidemen and expanding content

In October 2013, KSI signed with Maker Studios' sub-network, Polaris. Since 19 October 2013, KSI has been part of the British YouTube group known as the Sidemen. The group produces online videos, most often consisting of challenges, sketches and video-game commentary, as well as selling exclusive Sidemen merchandise.

In July 2014, KSI and Comedy Central UK launched ''KSI: Demolished'', a five-episode comedy roast web series in which British comedians such as Kojo, Michelle de Swarte, Bobby Mair, and Alex Lowe, take turns to roast KSI. In August 2014, KSI was the fourth most popular personality among U.S. teenagers, according to a survey done by ''Variety''. On 18 August 2014, KSI teamed up with Endemol for a new sports show called ''Rule'm Sports.'' In October 2014, KSI signed with MLG.tv, a streaming media service focused on gaming and esports, as part of the roster of live streamers. In September 2015, KSI was ranked 15th on ''Business Insider's'' list of "The 15 most popular YouTubers in the world". A year later in November 2016, he was ranked first on ''Business Insider's'' list of "The 19 biggest British YouTube stars".

On 4 August 2017, KSI tweeted that he would be leaving the Sidemen, citing conflicts with fellow member, Ethan Payne. Shortly thereafter, he released a number of diss track videos criticising members of his then-former group, to which most of the members responded back with their own. Later that month, KSI released a video in which he claimed that he was being deported from the United States for receiving an incorrect visa. In November 2017, KSI released a video discussing whether his supposed falling out with the Sidemen was real or fake, saying, "he dramawasn't entirely real but wasn't entirely fake either."

In 2019, he was ranked second by ''The Sunday Times'' in its list of the top 100 UK influencers. In 2020, ''The Times'' named KSI to be Britain's biggest influencer. In April 2021, he was listed among ''Forbes'' 30 Under 30 Europe 2021 Entertainment list. In September 2023, ''Forbes'' ranked KSI as the second top creator of 2023, earning an estimated $24 million. In July 2024, KSI appeared in a YouTube video challenge by American YouTuber MrBeast titled " 50 YouTubers Fight for $1,000,000".

Music career

2015–2016: Early releases

Having written and produced comedy–rap songs for his YouTube channel in 2011, KSI released his debut single, "Lamborghini", featuring British grime MC P Money, on 23 March 2015, with Dcypha Productions. The song charted at number 30 on the UK Singles Chart, and It dropped to number 68 and number 96 over the following two weeks, before dropping out of the top 100.

" Keep Up", the title song for KSI's debut extended play of the same name, featuring Jme, was released on 13 November 2015, reaching number 45 on the UK Singles Chart. The full EP was released on 8 January 2016, through Island Records, debuting at number 13 on the UK Albums Chart and number one on the UK R&B Albums Chart.

On 29 April 2016, KSI released "Goes Off", featuring Mista Silva, as the first single from his second EP titled ''Jump Around''. The EP's second single, " Friends with Benefits", featuring MNDM, was released on 29 July 2016, reaching number 69 on the UK Singles Chart. The full EP was released on 28 October 2016 through Island Records. One of the EP's songs, "Touch Down", featuring rapper and singer Stefflon Don, appeared on the soundtrack of the 2017 film ''Baywatch''.

2017–2019: Independent releases

On 23 June 2017, KSI independently released " Creature", which reached number 100 on the UK Singles Chart. "Creature" was the first single from KSI's third EP, ''Space,'' which was released independently on 30 June 2017. On 6 October that year, KSI released his fourth EP, ''Disstracktions,'' which includes diss tracks against fellow Sidemen members W2S and Behzinga. The EP reached number 31 on the UK Albums Chart and number one on the UK R&B Albums Chart. One week before its release, KSI announced that the EP would be his "final release" with Island Records and that he would be releasing music independently.

On 2 February 2018, KSI released " Uncontrollable", featuring Big Zuu. The song played during KSI's ring walk for his boxing fight against Joe Weller and charted at number 89 on the UK Singles Chart. KSI released "On Point" on 17 August 2018, which was played during his ring walk for his second boxing bout.

On 12 April 2019, KSI released a collaborative album with Randolph titled ''New Age''. It debuted at number 17 on the UK Albums Chart and at number one on the UK R&B Albums Chart.

2019–2020: New record label signing and ''Dissimulation''

On 4 November 2019, it was announced that KSI had signed with RBC Records and BMG to "take ismusic to the next level" and "further develop his music career in the US and internationally". In addition to managing KSI's future releases, it was confirmed that the label would be administering and reissuing KSI's independent catalogue recordings. That day, it was confirmed that KSI had already started recording his debut studio album. On 8 November 2019, " Down Like That", featuring Rick Ross, Lil Baby and S-X, was released as the album's lead single. It was performed live by the three featured artists as KSI's entrance music for his boxing rematch against Logan Paul.

The song peaked at number 10 on the UK Singles Chart and it has been certified silver by the British Phonographic Industry (BPI) for sales of 200,000 units in the country. On 15 December KSI, Miniminter, TBJZL, and Zerkaa released a Christmas themed single titled "The Gift" under the Sidemen banner featuring S-X which charted at number 77 in the UK. A further three singles preceded the album: " Wake Up Call", featuring Trippie Redd, which debuted at number 11 on the UK Singles Chart; " Poppin", featuring Lil Pump and Smokepurpp, which charted at number 43 in the UK; and "Houdini", featuring Swarmz and Tion Wayne, which debuted at number six on the UK Singles Chart and received a silver certification from the BPI.

KSI's debut studio album, titled '' Dissimulation'', was released on 22 May 2020. The album debuted at number two on the UK Albums Chart and further charted in 15 other countries. It was the UK's best-selling debut album by a British artist in 2020 and it has been certified gold by the BPI for sales of 100,000 units in the country. The album spawned two further UK top 40 singles, "Cap", featuring Offset, and " Killa Killa", featuring Aiyana-Lee. KSI was scheduled to perform at Parklife, Longitude and Reading and Leeds music festivals in 2020 to promote ''Dissimulation'', but these were later cancelled due to the COVID-19 pandemic.

KSI featured on "Lighter" by British DJ and record producer Nathan Dawe. The song peaked at number three on the UK Singles Chart and became one of the UK's best-selling songs of 2020. It has been certified platinum by the BPI for sales of 600,000 units in the UK and it was nominated for Best British Single at the 2021 BRIT Awards. KSI also featured on "Loose" by Zimbabwean-British artist S1mba, which peaked at number 14 on the UK Singles Chart.

2020–present: ''All Over the Place'' and new releases

On 23 October 2020, KSI released the first single from his second album, " Really Love" featuring Craig David and Digital Farm Animals, which peaked at number three on the UK Singles Chart and has been certified gold by the BPI. On 15 January 2021, KSI released the album's second single, "Don't Play" with Anne-Marie and Digital Farm Animals. The song debuted at number two on the UK Singles Chart, becoming KSI's highest-charting single in the UK to date, and has been certified platinum by the BPI. On 12 March 2021, KSI released the album's third single, "Patience" featuring Yungblud and Polo G, which debuted at number 3 on the UK Singles Chart and has been certified silver by the BPI. On 26 April 2021, KSI announced via his social media the release of his second album '' All Over the Place'', which was released on 16 July that year. It debuted at number 1 on the UK Album Charts, giving KSI his first-ever chart-topper, and has been certified gold by the BPI for surpassing 100,000 sales in the country. On 18 June 2021, KSI released the album's fourth single, "Holiday", which was only featured on the platinum edition of the album. The song debuted at number 2 on the UK Singles Chart, making it KSI's highest-charting solo single to date. On 6 August 2021, KSI released the album's fifth single, " Lose" with American rapper Lil Wayne, and was the lead single for the deluxe edition of the album, which was released on 27 August. The single peaked at number 18 on the UK Singles Chart and also debuted at number 86 on the ''Billboard'' Hot 100, becoming KSI's first ever single to enter that chart.

On 6 May 2022, KSI featured on " Locked Out" by S-X. The single is S-X's third single for his debut album. "Locked Out" became S-X's first single to chart in the UK Official Charts which peaked at number 53. On 30 May, it was announced that KSI had signed with Atlantic Records and Warner Music UK "following his huge collaboration with Anne-Marie on Don't Play". On 5 August, KSI released " Not Over Yet" featuring Tom Grennan. "Not Over Yet" charted at number four on the UK Single Charts, and debuted at number one on The Official Big Top 40. The single marked the first record under Atlantic Records. A remix featuring Headie One and Nines released on 28 August and served as KSI's ring walk tune in his bout against Luis Alcaraz Pineda on 27 August. On 30 September, KSI released " Summer Is Over." On 5 December, KSI, TBJZL, and Vikkstar123 released a Christmas-themed single titled " Christmas Drillings" under the Sidemen banner featuring Jme, which charted at number 3 in the UK. On 27 January 2023, KSI released "Voices" featuring Oliver Tree. On 13 May, KSI released " Easy" with Bugzy Malone and R3HAB which served as KSI's ring walk tune in his bout against Joe Fournier on the same night.

On 31 August 2024, KSI performed a two-part concert at MF & DAZN: X Series 17, in which he previewed two unreleased singles, "Low" and " Thick of It" , featuring Trippie Redd. On 3 October, KSI released both songs as a double-single release, the latter of which was subjected to negative reception and mockery. On 19 November, KSI received BRIT Billion Award for amassing over one billion music streams in the UK. On 13 December, KSI released his third single of the year, "Dirty", which had previously been leaked in July 2024. The song received a positive reception following the negative response to "Thick of It". On 23 January 2025, "Thick of It" was nominated for Song of the Year at The BRIT Awards 2025. On 30 May, KSI released another double-single with "Catch Me If You Can" and "So Far Away," the latter featuring S-X which had previously leaked in July 2024 alongside "Dirty."

Boxing career

Starting influencer boxing against Joe Weller

Supposed hostilities between KSI and British YouTuber Joe Weller began towards the end of 2017. Following public disagreements on Twitter and diss-tracks between the pair, they announced that they would host an amateur boxing match on 3 February 2018 at Copper Box Arena, London, to settle the feud. During the announcement, the pair confronted each other, with KSI mocking Weller's struggles with depression and his use of antidepressants for which he later apologised.

The fight was won by KSI 1 minute and 37 seconds into the third round by way of technical knockout. KSI expressed his respect for Weller after the fight for being "way harder, way tougher than I thought," and praised him for his commitment to raising awareness for mental health, before calling out American YouTuber Logan Paul, his brother Jake Paul, and retired footballer Rio Ferdinand.

Two bouts against Logan Paul

On 24 February 2018, it was announced that KSI would be fighting Logan Paul in a white-collar boxing amateur boxing match. The fight ended as a majority draw, with two judges scoring the fight even at 57–57 and a third judge scoring 58–57 in favour of KSI.

A KSI vs. Logan Paul II, rematch between KSI and Paul was held on 9 November 2019 at the Staples Center, Los Angeles, and was promoted by Eddie Hearn. Unlike the first fight, the rematch was a professional boxing, professional fight without the use of headgear. KSI was trained by professional boxers Viddal Riley and Jeff Mayweather, uncle of Floyd Mayweather Jr. KSI defeated Paul via split decision, with two judges scoring the bout 56–55 and 57–54 in favour of KSI, and a third judge scoring the fight 56–55 in favour of Paul.

Return after hiatus

KSI vs Swarmz & Pineda

On 1 July 2022, it was announced that KSI vs Alex Wassabi was scheduled to take place on as the headliner to KSI vs Swarmz & Luis Alcaraz Pineda, MF & DAZN: X Series 001 27 August 2022; however, due to a major concussion, it was announced on 6 August that Swarmz would be Wassabi's replacement. This marked the first event under KSI's promotion company Misfits Boxing.

On 16 August, it was announced that KSI will be facing a second opponent, thus billing the event "2 Fights 1 Night." His initial second fight was scheduled to be against the Bulgarian boxer Ivan Nikolov, who was pulled from the fight due to Nikolov having multiple White supremacy, white supremacist and Neo-Nazism, Neo-Nazi tattoos. On 20 August, the Mexican professional boxer Luis Alcaraz Pineda was announced as KSI's second opponent on 27 August. KSI defeated Swarmz via 2nd round Knockout, KO and won the vacant MFB cruiserweight title. KSI then defeated Alcaraz Pineda via 3rd round KO and retained his MFB cruiserweight title.

KSI vs Temperrr

On Deen the Great vs. Walid Sharks, 19 November, it was announced that KSI would face Dillon Danis as the headliner of KSI vs FaZe Temperrr, MF & DAZN: X Series 004 on 14 January 2023, at Wembley Arena, London, England. However, on 4 January, Danis withdrew due to lack of preparation, a lack of a coach, and issues with the contracted weight. It was announced that KSI would defend his MF cruiserweight title against Brazilian YouTuber and FaZe Clan founder FaZe Temperrr, replacing Danis within a weeks notice. KSI defeated Temperrr via 1st round KO and retained his MFB cruiserweight title.

KSI vs Fournier

On 22 March, it was announced that KSI would face BusinessMan, businessman and professional boxer Joe Fournier as the headliner of KSI vs Joe Fournier, MF & DAZN: X Series 007 on 13 May at Wembley Arena in London, England. KSI originally defeated Fournier via 2nd round KO and retained his MFB cruiserweight title; however, controversy arose after replays showed KSI landing an illegal elbow strike during the finishing sequence. On 15 May, Fournier appealed the decision, and the Professional Boxing Association (PBA) called for both fighters to make their cases, and a decision will be made by 19 May at the latest. On 19 May, the PBA officially ruled the bout a No contest (combat sports), no-contest.

First defeat against Tommy Fury

On 28 July, it was announced that KSI and Logan Paul would both headline KSI vs TBA, MF & DAZN: X Series 10 – The Prime Card on 14 October at Manchester Arena in Manchester, England. On 30 July, it was announced that KSI would in fact be facing Tommy Fury. Fury defeated KSI via a majority decision. On 15 October, the results were changed to a unanimous decision victory for Fury due to judge Rafael Ramos, who had previously scored the bout 57-57 on the scorecard, which was mathematically incorrect. The event generated 1,300,000 pay-per-view buys, making it one of the largest boxing events in 2023.

After the bout had concluded, KSI lashed out at Fury and insisted that the result was a "robbery." Many online and attendees sided with KSI, beveling that he did enough to win the fight, including English sports promoter Eddie Hearn, who was in attendance.

On 19 October, KSI submitted an appeal to the Professional Boxing Association (PBA). On 1 December, the PBA announced on Twitter that they had rejected the appeal, stating there were "no grounds" to overturn the result. Despite the result, KSI's manager Mams Taylor stated that the appeal is still ongoing and that they are moving into the second of three possible stages.

Cancelled outnumbered bout

On 2 June 2024, KSI confirmed on Twitter that he would return to the ring in August after a 10-month break from the Fury loss in October of last year. Reports began to state that KSI was in negotiations to face former Undisputed championship (boxing), unified Light-welterweight, light welterweight champion Amir Khan (boxer), Amir Khan. On 4 June, Khan confirmed the negotiations. However, on 8 June KSI confirmed in a YouTube video that Khan will not be his opponent but potentially for later in the year. In that video, KSI also confirmed he will be fighting on 31 August 2024, in Dublin, Ireland, and challenged American internet personality Slim Albaher and American mixed martial artist Anthony Taylor to a 2 vs. 1 2-on-1 handicap match, outnumbered tag team match. On 30 June 2024, the bout between KSI, Albaher and Taylor was confirmed. However, fans began to speculate if the bout had been cancelled following KSI deleting the bout announcement across his social media. On 1 August, KSI confirmed his withdrawal in a Twitter post due to an injury sustained.

Second cancelled bout against Dillon Danis

During the broadcast of Danny Aarons vs Danny Simpson, X Series 17, KSI stated he was eyeing to return in early 2025. On 3 January 2025, Misfits Boxing announced that his return would be announced during the broadcast of Darren Till vs Anthony Taylor, X Series 20 on 18 January. News broke hours before the announcement that former England FC, England and Premier League winning left-back Wayne Bridge is being lined up to face KSI for 29 March. On the night, KSI came into the ring and revealed his original opponent withdrew, leading into a face off with Bridge. On the night, KSI came into the ring and revealed his original opponent withdrew, leading into a face off with Bridge. The pair got into a brawl after KSI pushed Bridge and brought up John Terry and Bridge's former girlfriend Vanessa Perroncel. However, two days later Bridge withdrew from the bout due to the comments made by KSI about Perroncel. On 4 February, it was announced that American Mixed martial arts, mixed martial artist Dillon Danis—who KSI was originally scheduled to face at X Series 004—would replace Bridge and headlined KSI vs Dillon Danis, X Series 21 – Unfinished Business at Manchester Arena in Manchester. On 21 March, it was announced that the fight will be postponed due to KSI suffering from an illness. On 4 April, Misfits Boxing co-president Mams Taylor confirmed on X (formerly known as Twitter), X that Idris Virgo vs Ty Mitchell, X Series 22 – Blinders & Brawls was moved from April 12 to May 16, and will be their next event, confirming that X Series 21 – Unfinished Business was no longer happening.

Other ventures

Film and television career

In 2016, KSI and Caspar Lee starred in the British direct-to-video Comedy film, comedy film '' Laid in America.'' The film was written and directed by Sam Milman and Peter Vass and was produced by The Fun Group LLC and Max Gottlieb. The film was released direct-to-video by Universal Pictures on 26 September 2016. Jason Best of ''Movie Talk'' gave the film 1 out of 5 and called it "Crass and witless."

In 2018, KSI released a documentary film titled ''KSI: Can't Lose''. The film reveals the behind-the-scenes story of what led KSI to become the YouTube champion of the world after his boxing debut fight against fellow YouTube star Joe Weller and how KSI will use what he learned to fight Logan Paul. The film was produced by fellow YouTuber Callux's film studio, After Party Studios, and was distributed by Sony Pictures Home Entertainment.

KSI makes a brief appearance in the List of Amazon Prime Video original programming, Amazon Original sports docuseries ''All or Nothing: Arsenal'', which documented the club by spending time with the coaching staff and players behind the scenes both on and off the field throughout their 2021–22 Arsenal F.C. season, 2021–22 season.

In 2023, KSI released a documentary called ''KSI: In Real Life,'' produced by Amazon Prime Video and Louis Theroux, focusing on KSI's life and career. Theroux stated that it would be "an opportunity to see another side of JJ, understanding how he got where he is, the world of a premium online content creator today, and a man who has made it his brand never to lose, as he takes on the music business."

In February 2025, KSI appeared as a guest judge on Britain's Got Talent, ''Britain's Got Talent'' Britain's Got Talent series 18, series 18 on ITV1 with Simon Cowell, Alesha Dixon, and Amanda Holden.

Business ventures

KSI and the Sidemen have founded multiple businesses throughout their online careers. In 2014 the group launched a clothing brand under the Sidemen Clothing banner. In November 2021, they founded a Restaurant, restaurant chain known as Sides in collaboration with Reef. In October 2022, they launched their own vodka brand known as XIX Vodka. in March 2024, they launched a breakfast cereal brand known as Best Cereal in collaboration with Mornflake.

In February 2021, KSI announced on Twitter the creation of his own record label named "The Online Takeover" in partnership with his music manager Mams Taylor. Shortly after, he announced the first signee of his label, which was American-British singer Aiyana-Lee, who featured on the track " Killa Killa". On 13 May, KSI announced that he and Proper Loud have signed Yxng Dave to The Online Takeover, marking him the second artist to be signed to the label.

In June 2021, KSI announced that he and Wasserman (company), Wasserman Boxing had partnered up to launch a boxing promotional company called 'Misfits Boxing'. The first event was scheduled to take place on 27 August 2022, with KSI also set to make his boxing return as the main event. A series of other boxing events titled "MF & DAZN: X Series" in collaboration with DAZN, who were the distributors for KSI's previous rematch against Logan Paul, was announced, along with events to follow, marking the KSI vs Swarmz and Luis Alcaraz Pineda event as KSI vs Swarmz & Luis Alcaraz Pineda, MF & DAZN: X Series 001. On 10 January 2023, it was announced that Misfits Boxing and DAZN had signed a 5-year deal to continue distribute events with two pay-per-view each year.

In January 2022, KSI founded a drinks company known as Prime (drink), Prime alongside his former rival Logan Paul. Prime is a range of sports drinks, drink mixes, and energy drinks created and marketed by Prime Hydration, LLC.

In September 2024, KSI, Paul, and MrBeast founded a kids lunch kit company known as Lunchly – a joint venture between Prime and Feastables. It contains Prime, has Feastables chocolate and each one has a unique food. There are 3 kits: pizza, fiesta nachos, and turkey stack 'ems. They are all inspired by Lunchables.

In November 2024, it was announced that KSI would be the president of Baller League UK, a six-a-side football league.

Video games

In 2016, KSI teamed up with Endemol Shine Group to publish ''KSI Unleashed'', a video game that launched on iOS and Android (operating system), Android systems. KSI poked jabs at fellow YouTuber PewDiePie, claiming that "why would I make anyone have to spend money to buy my mobile app game." referring to the fact that ''PewDiePie: Legend of the Brofist'' was not a free application. ''KSI Unleashed'' was removed from the Google Play Store and App Store (iOS/iPadOS), App Store on an unknown date.

In 2018, KSI took part in the promotional efforts for ''EA Sports UFC 3'' by training alongside former Ultimate Fighting Championship, UFC middleweight world champion Michael Bisping.

In August 2021, KSI teamed up with ''Roblox'' and hosted a virtual album launch party inside the game.

Writing

In 2015, KSI published an autobiography titled ''KSI: I Am a Bellend''. The book was released on 24 September 2015, in the UK and five days later in the United States, and KSI toured to support the book from its release until 4 October 2015.

On 18 October 2016, KSI and the Sidemen released a book titled ''Sidemen: The Book'', published by Coronet Books, and embarked on a UK-wide promotional tour. A number one best-seller in the UK, the book sold 26,436 copies within its first three days release.

Wrestling

On 1 April 2023, KSI appeared at WWE's flagship event, WrestleMania 39, during the match between Logan Paul and Seth "Freakin" Rollins. He accompanied Paul during his entrance wearing a Prime Bottle costume and interfered in the match, but was frog splashed by Paul after Rollins quickly switched himself with KSI. On 8 March 2024, KSI made another appearance on WWE SmackDown, SmackDown with Paul to celebrate Prime's partnership with WWE; however, they would be interrupted by Randy Orton, who would hit KSI with an Cutter (professional wrestling)#Jumping cutter, RKO.

Personal life

KSI is a supporter of Arsenal F.C. In his "Googling Myself" video, KSI revealed that he is agnostic.

In March 2021, KSI faced criticism for misgendering a Transgender, trans person and using a Transphobia, transphobic slur in a Sidemen video. He later apologised, claiming not to have known that the word was offensive. In April 2023, KSI used the racial slur "''Paki (slur), Paki'' " in a Sidemen video parodying the British game show ''Countdown (game show), Countdown''. He later apologised on Twitter and announced he was taking a break from social media. The video has since been removed. He then visited the Al-Hikam Institute, a mosque in Bradford, to "educate himself", where he apologised again for the hurt and disappointment he had caused.

Income and wealth

In 2015, KSI's earnings were estimated by ''Forbes'' as being over $4.5 million, ranking him as the fifth-highest-paid YouTuber in the world at the time.

In 2018, ''Esquire (magazine), Esquire'' magazine reported that, according to Social Blade, KSI can make up to £250,000 in advertising revenue from one video and that product endorsements on his social media cost around £75,000. Heavy.com, Heavy reported in the same year that KSI was the director of three UK companies with equity totalling £1.7 million ($2.2 million).

''Business Insider'' reported that KSI's amateur boxing match versus Logan Paul in 2018 generated around £8.5 million ($11 million) from pay-per-view revenue alone and a further live gate revenue of over £2.7 million () from ticket sales. Some estimates calculated the potential earnings from the fight at £30million to £40million each, but KSI dismissed these claims, stating that his earnings were "a high amount" but "nowhere near £40million or £20million". ''Forbes'' reported that KSI was contracted to earn a minimum amount of $900,000 from his second fight against Logan Paul in 2019.

In an interview with ''Men's Health'' in 2020, KSI confirmed that he owns over ten properties "all around England" with a combined worth of over £10 million. In 2020, ''The Sunday Times'' estimated KSI's earnings to be £12 million a year; a year later, they believed that his estimated earnings had gone up by another £13 million.

KSI has been open about his investments in cryptocurrency. He revealed that he had lost almost £6 million worth of cryptocurrency in 2021. He claims to be done with cryptocurrency following his losses.

In July 2023, KSI invested in The Fellas Studios, a production company owned by YouTubers Callum "Calfreezy" Airey and Joshua "TheBurntChip" Larkin. It was also revealed that he had invested in notwoways, an East London sneaker brand owned by YouTuber Callum "Callux" McGinley.

On 17 August 2024, KSI, along with the Sidemen, appeared and was ranked 21st on ''The Times'''s list of "The UK’s top 30 richest gamers and creators in 2024", estimating £50 million in fortune shared among the group.

Charity

In 2015, KSI donated $10,000 to an online charity stream done by YouTuber Castro1021, and he participated in the Race Against Slime event, raising money for SpecialEffect, a foundation developing technology to aid people with physical disabilities to play video games.

On 8 May 2020, KSI helped out at a food bank to support ''The Independent'''s Help the Hungry campaign. On 18 December 2020, KSI prepared meals to support the ''Evening Standard'''s Food for London Now campaign. KSI donated £10,000 to BBC Radio 1's "Lol-a-thon" fundraiser for Comic Relief on 11 March 2021. On 30 March 2021, it was announced that KSI had signed an open letter, written by Lenny Henry, to urge black British people to take the COVID-19 vaccine.

On 15 December 2023, KSI faced American Livestreamer, streamer IShowSpeed in a charity boxing sparring match after a year-long banter rivalry. They managed to raise over £50,000 for the Anthony Walker Foundation.

On 14 February 2025, KSI participated in "Match for Hope 2025", a football charity event hosted in Doha, Qatar, as a player and co-captain for team AboFlah & KSI, facing off against team Chunkz & IShowSpeed. The match ended with team AboFlah & KSI's 6-5 victory over team Chunkz & IShowSpeed. The event managed to raise more than $10.7 million for charity.

Boxing record

Professional

Amateur

Pay-per-view bouts

Filmography

Gameography

Discography

Studio albums
* '' Dissimulation'' (2020)
* '' All Over the Place'' (2021)
Collaborative albums

* ''New Age (KSI and Randolph album), New Age'' (2019)

Concert tours

* Jump Around Tour (2016)
* The New Age Tour (2019)
* All Over the Place (KSI album)#Tour, All Over The Place Tour (2021–2022)

Bibliography

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Awards and nominations

Listicles

Notes

References

External links

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{{authority control

KSI,
1993 births
Living people
21st-century British rappers
21st-century English sportsmen
Black British sportsmen
Black British male rappers
British music YouTubers
British trap musicians
British comedy YouTubers
Boxers from London
Cruiserweight boxers
Drink company founders
English-language YouTube channels
English agnostics
English company founders
English entertainers
English gaming YouTubers
English male boxers
English male film actors
English male rappers
21st-century male rappers
English male writers
English people of Nigerian descent
English people of Yoruba descent
English pop musicians
Male actors from London
Male actors from Watford
Misfits Boxing
Musicians from Watford
People educated at Berkhamsted School
Pop rappers
RBC Records artists
RPM people
Sidemen Charity Match players
Sidemen
Sportspeople from Watford
UK garage musicians
YouTube boxers
YouTubers from Hertfordshire
YouTubers from London