Heo Ga-yoon, better known by the mononym Gayoon, is a South Korean singer and actress. She is a former member of South Korean girl group 4Minute and its sub-group 2Yoon. Wikipedia
Born: 18 May 1990 (age 28 years), Seoul, South Korea
Height: 1.65 m
Music groups: 4Minute (2009 – 2016), 2YOON (Since 2013)
