Sooyoung

Sooyoung was born in Gwangju, Gyeonggi, South Korea on February 10, 1990. She is the younger sister of, Choi Soo Jin, who is a musical actress. Her father, Choi Jungnam, is an architect as well as a manager of a contracting company. Her mother, Moon Sohee, is a housewife, but she has taught opera classes. Soo-young speaks fluent Korean & Japanese as well as conversational English. 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.

On March 20, 2012, she was cast on a medical drama titled The 3rd Hospital as violist "Eu Jin", who is part of the "love square", along with actors Kim Seung Woo, Oh Ji Ho and Kim Min Jung. Her acting was very well received by both viewers and critics, with co-actor Oh Ji Ho remarking that Sooyoung is "the best actress in Girls' Generation while viewers are drawn to her natural display of emotion". On June 9, 2012, she made a cameo appearance on a drama titled A Gentleman's Dignity as herself.