【TVPP】B1A4 - What's Going on?, 비원에이포 - 이게 무슨 일이야 @Korean Music Wave In Fukuoka
What's Happening? is the fourth mini-album recorded by the South Korean boy band B1A4, which was released by WM Entertainment on May 6, 2013. The track "What's Happening?" was used as the lead single of the album. The song "What's Happening(이게 무슨 일이야) took the first rank on the ground wave in Korea, May, 2013.