Share Facebook Twitter LinkedIn Pinterest Email 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. Wikipedia Born: 16 June 1995 (age 22 years), Namwon, South Korea Genre: K-pop Record label: MBK Entertainment Music group: DIA Sending User Review 0 (0 votes) hui-hyeon
