Perfect All-Kill () or PAK is a

music chart A record chart, in the music industry, also called a music chart, is a ranking of recorded music according to certain criteria during a given period. Many different criteria are used in worldwide charts, often in combination. These include r ...

achievement in South Korea where a song simultaneously reaches number one on the real-time, daily, and weekly components of iChart, a music chart ranking aggregator operated by the South Korean web entertainment publisher Instiz Corporation, the operator of the web forum. The term "perfect all-kill" was first used when the song "

Nagging Nagging, in interpersonal communication, is repetitious behaviour in the form of pestering, hectoring, harassing, or otherwise continuously urging an individual to complete previously discussed requests or act on advice. The word is derived from th ...

" by IU featuring Seulong shot up to rank number 1 on all Korean music charts in June 2010. Although Instiz iChart was launched in March 2010, it does not list 2010 records. Aside from "Nagging", " Good Day" by IU, which topped the charts in December 2010, was also recognized as a perfect all-kill song. The artist that holds the record for the most number of songs to achieve a PAK is IU with 21 songs. The song with the most hourly PAKs is " Dynamite" by

BTS BTS (), also known as the Bangtan Boys, is a South Korean boy band formed in 2010 and debuting in 2013 under Big Hit Entertainment. The septet—consisting of members Jin, Suga, J-Hope, RM, Jimin, V, and Jungkook—co-writes and co-p ...

with 610 PAKs.

iChart

The Instiz iChart is the first and only South Korean online music chart that aggregates the rankings of major music streaming services, including

Melon A melon is any of various plants of the family Cucurbitaceae with sweet, edible, and fleshy fruit. The word "melon" can refer to either the plant or specifically to the fruit. Botanically, a melon is a kind of berry, specifically a " pepo". The ...

Genie Jinn ( ar, , ') – also romanized as djinn or anglicized as genies (with the broader meaning of spirit or demon, depending on sources) – are invisible creatures in early pre-Islamic Arabian religious systems and later in Islamic m ...

Bugs! ''New Looney Tunes'', originally titled ''Wabbit: A Looney Tunes Production'' in the US and ''Bugs!'' in some markets for its first season, is an American animated television series from Warner Bros. Animation based on the characters from ''Lo ...

Vibe ''Vibe'' is an American music and entertainment magazine founded by producers David Salzman and Quincy Jones. The publication predominantly features R&B and hip hop music artists, actors and other entertainers. After shutting down production ...

, and

Flo ''Flo'' is an American sitcom television series and a spin-off of ''Alice'' that aired on CBS from March 24, 1980, to June 30, 1981. The series starred Polly Holliday reprising her role as sassy and street-smart waitress Florence Jean "Flo" Cast ...

, which provide real-time and daily data. The iChart has its own real-time and weekly rankings based on points given to songs. The iChart is considered transparent as it calculates scores based on various agencies' ranking data, and updates its real-time and daily charts accordingly. The users can also visit the source agencies’ websites directly to compare rankings. The records may be accessed by the public for three months.

History

Before 2015, the iChart aggregated scores from 10 music service providers. These 10 agencies were

Mnet M-Net (an abbreviation of Electronic Media Network) is a South African pay television channel established by Naspers in 1986. The channel broadcasts both local and international programming, including general entertainment, children's series, ...

Olleh KT Corporation (Hangul: 주식회사 케이티), formerly Korea Telecom, is a South Korean telecommunications company. KT is the second-largest wireless carrier in South Korea, with 16.493 million subscribers as of Q4 2017. The formerly fully ...

Soribada Soribada ( ko, 소리바다) was the first Korean peer-to-peer file-sharing service, launched in 2000 by Sean Yang. The name 'Soribada' means "Ocean of Sound" or "Receiving (downloading) Sound". It was closed in 2002 by court order but continued t ...

Naver Naver (Hangul: 네이버) is a South Korean online platform operated by the Naver Corporation. It was launched in 1999 as the first web portal in South Korea to develop and use its own search engine. It was also the world's first operator to i ...

, Daum,

Cyworld Cyworld () is a South Korean social network service. Cyworld was originally part of SK communication, and became an independent company in 2014. Members cultivate relationships by forming ''Ilchon'' (, Hanja: 一寸) or "friendships" with each ...

, and Monkey3. Each chart provided real-time and daily rankings. The removal and/or replacement of charts from the official iChart ranking list was due to 1) inconsistencies on its ranking criteria; 2) low volume of users; or 3) discontinued service. In February 2017, Melon, Mnet, and Genie shifted its streaming calculation for real-time charts between 12 PM and 6 PM only. This meant that anything that was released outside that time period will not count towards the chart until 1 PM of the following day. This major change was reported as a measure in pursuit of music charts fairly reflecting a song's popularity. In May 2017, Olleh and Monkey3 was excluded from Instiz iChart ranking calculation and Naver Music score became doubled. In February 2019,

was added to the iChart. In October 2019, Mnet discontinued its service and merged with Genie, and was subsequently removed from the chart. Naver Music was also removed, and was replaced by Naver VIBE. In May 2020,

made some changes on its real-time chart ranking calculation. The chart switched from rankings based on hourly usage per song to a chart calculated based on the number of unique listeners. The streams and downloads from the past 24 hours was calculated, rather than the past hour.

Mechanic

The real-time charts are updated during the course of the day, at 30 minutes past each hour. The daily charts, on the other hand, are updated once a day, and each ranking platform updates their charts at different times. The iChart gathers the data and attributes points to each song. The following table shows the point system that is reflected in the rankings to determine whether the song has achieved a RAK, CAK, or PAK. On top of these points, the Instiz iChart also attributes bonus points for more popular and widely used platforms than others. It applies a multiplier to the accumulated points that a song gets from certain charts. This multiplier only applies on daily charts. The following table shows the maximum points for every chart.

Related terms

Other "all-kill" categories on the Instiz iChart include Real-time All-Kill (RAK) and Certified All-Kill (CAK). RAK is achieved when a song becomes number 1 on all iChart real-time charts while CAK is achieved when a song becomes number 1 on all iChart real-time and daily charts. For a song to achieve a PAK, it needs to become number 1 on iChart weekly chart as well.

Achievements

Top 10 songs with the most hourly PAKs

The following table lists the top 10 Korean songs with the highest number of perfect all-kills (in hours), from 2010 to present.

Artists with the most songs to achieve a PAK

The following table lists the top Korean artists with the highest number of songs that achieved a perfect all-kill from 2010 to present.

References

{{reflist

External links

iChart

Instiz
South Korean record charts Music-related lists