Biography
Cho Seung Hee, later legally changed to Choi Yi Hyun, is a South Korean singer, dancer, actress, producer and former member of F-VE DOLLS (파이브돌스) and DIA (다이아). She graduated from Daesung Girls' High School and was later enrolled in the Theatrical and Film Studies program at Kookmin University, but is officially on a leave of absence. Before debuting, she was a trainee at Woollim Entertainment and was set to become a member of LOVELYZ, even appearing in an episode of "Running Man", but the plan fell apart, and she left the company without debuting. At nearly the same time, MBK Entertainment (MBK엔터테인먼트, formerly known as Core Contents Media) debuted their idol group, COED SCHOOL, in September 2010. But, the agency opted to create two separate groups, one for the boys and another for the girls
