"Let's fly! Hello, we're B1A4!" B1A4 ( 비원에이포) consist of 5 members: Jinyoung, CNU, Sandeul, Baro and Gongchan. The band debuted on April 23, 2011 under WM Entertainment. Starting 2015 they use LOEN Entertainment to distribute their physical albums.
In 2018, Baro and Jinyoung did not renew their contracts in WM Entertainment and officially left B1A4.