Yoo Si-ah (; born Yoo Yeon-joo on September 17, 1995), better known by her

stage name A stage name or professional name is a pseudonym used by performers, authors, and entertainers—such as actors, comedians, singers, and musicians. The equivalent concept among writers is called a ''nom de plume'' (pen name). Some performers ...

YooA () is a South Korean singer and actress. She is a member of the girl group

Oh My Girl Oh My Girl (, stylized in all caps or OMG) is a South Korean girl group formed by WM Entertainment. The group is composed of six members: Hyojung, Mimi, YooA, Seunghee, Yubin and Arin (singer), Arin. Originally an eight-piece group, JinE left t ...

under

WM Entertainment WM Entertainment (Hangul: WM 엔터테인먼트) is a South Korean entertainment company established in 2008 by former singer Lee Won-min (birth name: Kim Jung-soo). The company is responsible for managing artists such as B1A4, Oh My Girl, and ...

. She made her debut as a solo artist, with her first EP '' Bon Voyage'', on September 7, 2020.

Early life

YooA was born Yoo Yeon-joo on September 17, 1995, in Sinchang-dong,

Yongsan-gu Yongsan District (, ) is one of the 25 districts of Seoul, South Korea. It has a population of 231,685 (2020) and has a geographic area of , and is divided into 19 '' dong'' (administrative neighborhoods). Yongsan is located near Downtown Seoul, ...

Seoul, South Korea Seoul, officially Seoul Special Metropolitan City, is the capital city, capital and largest city of South Korea. The broader Seoul Metropolitan Area, encompassing Seoul, Gyeonggi Province and Incheon, emerged as the world's List of cities b ...

, and legally changed her name to Yoo Si-ah. Her older brother is a dancer and choreographer at the 1Million Dance Studio.

Career

2015–2020: Debut with Oh My Girl and other activities

On April 20, 2015, YooA debuted in the South Korean girl group

. In August 2016, YooA took part in the Mnet dance TV show ''

Hit the Stage ''Hit the Stage'' is a South Korean television program broadcast by Mnet in which K-pop idols team up with professional dance teams to compete in a dance survival contest. It premiered on July 27, 2016 and the first season concluded on September ...

'' with U-Kwon of

Block B Block B () is a South Korean boy band managed by KQ Entertainment, and consists of seven members: Taeil, B-Bomb, Jaehyo, U-Kwon, Park Kyung, Zico, and P.O. Block B has received several accolades, including nominations for seven Golden Disc ...

as her partner. They finished in fourth place behind her brother and his partner

Hyoyeon Kim Hyo-yeon (; born September 22, 1989), known professionally as Hyoyeon or DJ Hyo, is a South Korean singer, dancer, and DJ. She debuted as a member of the girl group Girls' Generation in August 2007, which went on to become one of the best-s ...

. In November 2016, she debuted as a member of the ''Inkigayo'' project group, Sunny Girls, with the single, "Taxi". In Summer 2017, YooA joined the reality show ''

Idol Drama Operation Team ''Idol Drama Operation Team'' () was a 2017 South Korean web variety program. The program was presented through Naver TVCast and Naver V App every Monday, Wednesday, and Friday at 11:00 (KST), starting from May 29, 2017. Starting June 10, it was ...

''. They made their debut as Girls Next Door with the single, "Deep Blue Eyes". In May 2018, YooA released the single "Morning Call".

2020–present: ''Bon Voyage''. ''Selfish'' and ''Borderline''

On September 7, 2020, YooA made her solo debut with the extended play '' Bon Voyage''. On September 15, 2020, YooA received her first music show trophy on ''

The Show Show or The Show may refer to: Competition, event, or artistic production * Agricultural show, associated with agriculture and animal husbandry * Animal show, a judged event in the hobby of animal fancy ** Cat show ** Dog show ** Horse show ** S ...

''. On September 25, 2020, YooA released an OST for the

Netflix Netflix is an American subscription video on-demand over-the-top streaming service. The service primarily distributes original and acquired films and television shows from various genres, and it is available internationally in multiple lang ...

film '' Over The Moon''. In October 2022, WM Entertainment announced that YooA was preparing new music. She released the four-track EP ''Selfish'' on November 14, with a lead single of the same name. On March 14, 2024, YooA released her first single album ''Borderline'', with the lead single "Rooftop". On June 2, 2025, YooA departed WM Entertainment and signed a contract with

Saram Entertainment Saram Entertainment () is an entertainment company in South Korea, founded by Lee So-young in 2006 and partakes in artist management and film production. It currently operates as a subsidiary of Standus Corporation. Current artists Actors * Cl ...

as an actress.

Discography

Extended plays

Single albums

Singles

Soundtrack appearances

Videography

Music videos

Filmography

Film

Television shows

Hosting

Awards and nominations

Notes

References

External links

* {{Authority control 1995 births Living people Oh My Girl members People from Yongsan District South Korean women pop singers Singers from Seoul K-pop singers South Korean female idols South Korean female dancers WM Entertainment artists 21st-century South Korean women singers Japanese-language singers of South Korea