Song Han-gyeom

Hangyeom (Korean: 한겸; Japanese: ハンギョム; formerly known as A-Day) is a South Korean singer-songwriter and rapper under IPQ. He is a member of the boy group OMEGA X and the former leader of the boy group Seven O'clock. On March 16, 2017, Hangyeom made his debut as a member of Seven O'clock with their first mini album Butterfly Effect under the name A-Day.