Choi Sooyoung (최수영) born February 10, 1990) commonly known as Sooyoung (수영) was born in Gwangju, Gyeonggi, South Korea. She is a Korean singer, actress, spokesmodel, TV presenter, and radio DJ. She is a member of the Korean girl group Girls' Generation under SM Entertainment. She was discovered on SM Casting System via the 2000 SM Open Audition. She then auditioned for the 2002 Korea-Japan Ultra Idol Duo Audition and won first place, marking her debut into the Japanese music scene with the band Route 0.

After winning first place in the 2002 Korea-Japan Ultra Idol Duo, Sooyoung was sent to Japan and debuted as a member of the duo Route 0, alongside Malina Takahashi.[4] The band released three singles: "Waku! Waku! It's Love", "Start", and "Painting", and 3 B-Sides : Go Go Happy!!, Kimi Ni Ae Ta Kara (君に会えたから) and Onna No Ko Magic (女の子マジック).

In 2008, Sooyoung and Yuri (a fellow member of Girls' Generation) sang the trot song "Kkok" (Hangul: "꼭") for the opening theme of the SBS TV miniseries Working Mom (Hangul: 워킹 맘). She was also featured in "Oh! My Love to You" (Korean: "너만을 느끼며"; or alternatively titled "Feeling Only You") by The Blue (Kim Min-jong and Son Ji-chang), alongside bandmate Tiffany. She also sang the opening soundtrack for Inuyasha in Korean language.

- Japanese name: チェ・スヨン / Che Suyon
- Height: 170cm
- Blood type: O
- Talent agency: SM Entertainment
- Education: Jungshin All-Girls High School, Chungang University
- Languages: Korean and Japanese Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.