B1A4 (비원에이포; debuted Apr 23, 2011) is a three-member South Korean boy group under WM Entertainment. The group debuted on April 23, 2011 under LOEN Entertainment with originally five members: CNU, Sandeul, Gongchan, Jinyoung, and Baro. Jinyoung and Baro left in 2018.
B1A4 is currently composed of 3 members born between 1991 and 1993. Their names are: CNU, Sandeul, and Gongchan. The oldest member is CNU (born Jun 16, 1991). The youngest member or maknae is Gongchan (born Aug 14, 1993). Two of the original five members of B1A4 left the group in 2018. Jinyoung and Baro departed after their 7-year contract had expired.
|CNU||main dancer, vocalist, rapper|
|Gongchan||lead dancer, vocalist, visual|
Ranked from oldest to youngest.
|1. CNU||Jun 16, 1991||30 years old|
|2. Sandeul||Mar 20, 1992||29 years old|
|3. Gongchan||Aug 14, 1993||28 years old|
Ranked from tallest to shortest.
|1. CNU||1.82 m (5'12")|
|2. Gongchan||1.81 m (5'11")|
|3. Sandeul||1.75 m (5'9")|