Main rapper, main dancer and vocalist for the all-female K-pop group Cignature that debuted with a single called "Nun Nu Nan Na." She was known by the stage name Sunn.
She was known on stage as Viva when she was part of the band GOOD DAY.
She attended Joy Dance Academy. She finished in 29th place on the survival show The Unit, however, she ranked 3rd The Unit's dance queen competition.
She was born in Gwangju, South Korea.