She was born on October 24 1994 in San Francisco, California, USA. She is Korean. She holds two nationalities is American and Korean. Her education is Korea Kent Foreign School and Hanlim Multi Arts High School,She is currently studying at Sungkyunkwan University. She has Blood type A. She hight 165 cm. and weight 48 kg. She can speak Korean, English Japanese and Chinese languages. When she was a child she live in San Francisco and when she was 6 year old she moved to Korea. Her Profession is Singer, actress, and model. She is a member of band f (x).The position in the band is Lead Vocalist. In 2006, she was recruited as SM Entertainment trainee in the "2006 SM Casting System" and her parents allowed her to join SM Entertainment. On September 1, 2009 she and her group f(x) debuted with their single 'La Cha Ta'.