Ki Hui-hyeon
June 16, 1995 — Namwon, North Jeolla, South Korea
Ki Hui-hyeon, better known by the mononym Huihyun and former stage name Cathy, is a South Korean singer. She is best known as a member of the South Korean girl group DIA
June 16, 1995 — Namwon, North Jeolla, South Korea
Ki Hui-hyeon, better known by the mononym Huihyun and former stage name Cathy, is a South Korean singer. She is best known as a member of the South Korean girl group DIA