Son Ho-jun (born June 27, 1984) is a South Korean singer and actor. Prior to his acting debut, Son made his entertainment debut in 2007 as the leader of Tachyon, a three-member boyband, which first performed on the show A-Live on Channel V Korea. The first pop group launched by J&H Media, Tachyon released the debut single Feel Your Breeze (a Korean remake from the Japanese boyband V6), then disbanded shortly after. Son turned to acting, and rose to stardom for playing the character Haitai in campus drama Reply 1994. He also gained popularity for appearing in variety/reality shows, notably Youth Over Flowers and Three Meals a Day: Fishing Village. In July 2016, Son signed with YG Entertainment.