Birth name: 서주현 (Seo Joo-hyun)

Born:  June 28, 1991 (age 22)

Origin: Seoul, South Korea

Genres:	K-pop, dance-pop

Occupations: Singer, dancer, actress, promotional model, TV presenter

Instruments:	Vocals, piano, guitar

Years active:	2004–present

Labels: S.M. Entertainment

Associated acts:	Girls' Generation  , SM Town , Girls Generation-TTS❣