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. As a result, F-VE DOLLS debuted in February 2011 but experienced a series of lineup changes almost immediately. She was added as the group's new main vocalist and made her debut in July 2013 with the digital single "Since 1971".

She left the agency in mid-2014 as the group had gone on hiatus. In March 2015, MBK confirmed the group's disbandment. She then made her acting debut with minor roles in "Mr. Back" and "Triangle".

In September 2015, she re-debuted as DIA's leader, main vocalist and face of the group with their first album, "Do It Amazing". However, in April 2016, PocketDol Studio (포켓돌스튜디오) announced her departure from the group in order to pursue an acting career.

In 2019, she seemed to have ended her acting career as she began focusing on producing and managing other artists, such as trot singer Hong Ja and group BAE173. In 2020, she legally changed her name to Cho Yi Hyun, and the following year, she worked on the planning and A&R for the reality survival show “My Teenage Girl”. After the show ended, she founded PocketDol Studio's label M25, which currently manages the resulting project group, CLASS:Y.

(Source: MyDramaList) Edit Biography