Name: Yoon Doojoon
Birthday: July 4, 1989
Position: Leader, Rapper, Vocalist
Name: Jang Hyunseung
Birthday: September 3, 1989
Name: Yong Junhyung
Birthday: December 19, 1989
Position: Main Rapper
Name:Yang Yoseob
Birthday: January 5, 1990
Position: Main Vocalist
Name: Lee Kikwang (sometimes mentioned as AJ)
Birthday: March 30, 1990
Name: Son Dongwoon
Birthday: June 6, 1991
Position: Vocalist, Rapper