Ki Hui-hyeon
Pop Singer
Pop star best known as a member of the South Korean girl group DIA, where she previously went by the stage name Cathy. She debuted with the band in 2015 and has won popularity with singles like "Somehow" and "Flower, Moon, Alcohol."
She was a trainee with Woollim Entertainment alongside members of the band Lovelyz prior to joining MBK Entertainment.
She was a contestant on the reality show Produce 101 in 2016.
She was born in Namwon, South Korea.
She has been bandmates with Chae-yeon Jung in DIA.