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

Ki Hui-hyeon

Acting Born 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

Known For

Men on a Mission

Self

Produce 101

Self - Contestant

Winter in Sokcho

Bandaged Woman

Love & Wish

Hong-yeon

Love in Black Hole

Anna

Love Again

Hui-hyeon

DIA 1st Concert "First Miracle"

Huihyun

다이아′s 욜로트립