Choi Sulli (born March 29, 1994), better known as just Sulli, is a Korean pop singer and actress. She first debuted as a child actress in 2005 and then as a singer of quintet dance group f(x) in 2009.

Sulli began acting professionally at the age of 11, when she was selected to play young Princess Sun-hwa in the SBS television drama, The Ballad of Seo-dong.[1] A few months later, she made a cameo appearance in Love Needs a Miracle, another SBS television drama. In 2006, she made a small supporting appearance as the childhood crush of TVXQ's Micky in the theatrical drama Vacation. Sulli later landed a small role in Punch Lady and The Flower Girl is Here (2007) and also BABO (2008).