Known best for her work with an all-female vocal ensemble called 4Minute, this South Korean pop singer also performed with the group's side project, 2Yoon. As a solo artist, she contributed several songs to the soundtracks of My Princess, Lie to Me, and other South Korean television series.
Early in her singing career, she performed duets with two members of the South Korean boy band Beast.
She was a series regular on the South Korean cable television series I'm Going to School.
A native of Seoul, South Korea, she studied theater at Dongguk University.
She and Kim Hyun-a both performed with 4Minute.