B1A4 in Osaka

B1A4 is a South Korean pop group formed by WM Entertainment in 2011. The group debuted with the EP Let's Fly and “O.K,” then became known for songs including “Baby Good Night,” “What's Happening?” and “Lonely,” as well as the albums Ignition, Who Am I and Good Timing. The original lineup comprised Jinyoung, CNU, Sandeul, Baro and Gongchan; CNU, Sandeul and Gongchan later continued as a trio. B1A4 staged their first solo concert, BABA B1A4, in Seoul in 2012. The Road Trip tour took the group to the United States and Australia in 2014, followed by the B1A4 Adventure tour in 2015 and concerts in Dallas.