B1A4 (Korean: 비원에이포) is a South Korean quintet boy band. Formed by WM Entertainment in 2011, they made their debut with their release Let's Fly. The band consists of Jinyoung, Baro, Sandeul, CNU and Gongchan. The group was first introduced through an online comic series, or "webtoon".

Real Name: Jung Jin Young (정진영)
Position: Vocals, Leader
Birthyear: 18 November 1991
Height: 178cm
Weight: 59kg
Skills: Song writing, singing, acting

Name: Shin Dong Woo (신동우)
Position: Vocals, Rap
Blood Type: A
Birthday: 16 June 1991
Height: 182cm
Weight: 64kg

Name: Cha Sun Woo (차선우)
Position: Rapper
Blood Type: B
Birthyear: 05 September 1992

SANDEUL
Real Name: Lee Jung Hwan (이정환)
Position: Main Vocal
Birthyear: 20 March 1992
Blood Type: A
Height: 178cm
Weight: 62kg

Real Name: Gong Chan Shik (공찬식)
Position: Vocals, Maknae (Youngest)
Birthday: 14 August 1993
Blood Type: A
Height: 181cm
Weight: 60kg

ILOVE K-POP ;]