B1A4 Profile~

B1A4 (Korean: 비원에이포) is a five member South Korean boy band founded by WM Entertainment in 2011. The band consists of Jinyoung (leader), Baro, Gongchan, Sandeul, and CNU (Shin Woo). They have gained much interest due to being first introduced in a webtoon and for their unique sound mixing pop with rock for their debut album. Their group name, B1A4, has been explained as being due to one member having B blood type, and the other four having A blood type. It also stands for "Be The One, All For One" .

2011: Debut 'O.K'

B1A4 debuted on April 21, 2011 with their debut track 'O.K' off of their album 'Let's Fly' and released a music video. They were first introduced to the world through the creative marketing of webtoons before their actual pictures were released. Their debut album 'Let's Fly' includes a song written and composed by the leader Jinyoung. As rookies, this garners much interest being that most debut albums contain little input from the members.

 Members

Birth Name: Jung Jin Young (정진영)

Position: Leader, Vocalist

Born in : 1991.11.18
   Height/Weight: 178cm/59kg
Blood type: A
  Skills: Song writing, singing, acting

Twitter: @B1A4_JINYOUNG

Birth Name: Shin Dong Woo (신동우)

Position: Vocalist, Rapper
  Born in : 1991.06.16
  Height/Weight: 182cm/64kg
Blood type: A

Twitter: @B1A4_CNU
  

Birth Name: Lee Jung Hwan (이정환)

Position: Main Vocalist

Born in : 1992.03.20
  Height/Weight: 178cm/62kg
Blood type: A
  Twitter: @SANDEUL920320

Birth Name: Cha Sun Woo (차선우)

Position: Main Rapper
  Born in : 1992.09.05
    Height/Weight: 178cm/63kg
Blood type: B

Twitter: @BARO920905

Birth Name: Gong Chan Shik (공찬식)

Position: Vocalist
  Born in : 1993.08.14
  Height/Weight: 181cm/60kg
Blood type: A

Twitter: @B1A4_gongchan
 

Official Daum Fan Cafe 

Source: B1A4 Official Website + Wikipedia