Oh Seunghee (Hangul: 오승희; born (1995-10-10)October 10, 1995) is a South Korean idol, singer, dancer and leader of the South Korean girl group, CrystaL Clear or commonly referred to as CLC that is formed by Cube Entertainment and debuted last March 19, 2015.Before debut she took part in BEAST's Yoseob's Perfume alongside member Seungyeon and BtoB's Yook Sungjae's Curious for Plus Nine Boys OST. She also starred in BtoB's music videos 2nd Confession and The Winter's Tale.