B1A4 is a KPOP group formed by Wm Entertainment.

They made their debut stage on April 23rd, 2011 in MBC! Music Core.

Basically, their one year anniversary is on April 23th, 2012 ^^

Introducing B1A4!!

Jung Jinyoung

Stage name: Jinyoung

Position: Leader, Vocalist

D.O.B: Nov 18th, 1991

Blood Type: A

Lee Junghwan

Stage name: Sandeul

Position: Main Vocalist

D.O.B: March 20^th, 1992

Blood Type: A

Cha Sunwoo

Stage name: Baro

Position: Main rapper

D.O.B: Sept 5th, 1992

Blood Type: B

Shin Dongwoo

Stage name: CNU

Position: Rapper, Vocalist

D.O.B: June 16^th, 1991

Blood Type: A

Gong Chanshik

Stage name: Gongchan

Position: Maknae, Vocalist

D.O.B Aug 14^th, 1993

Blood Type: A