[MV] B1A4 _ What’s Happening?(이게 무슨 일이야)

[MV] B1A4 _ What’s Happening?(이게 무슨 일이야) [Notice] 1theK YouTube is also an official channel for the MV, and music shows will count the views from this channel too. [공지] 1theK YouTube는 MV를 유통하는 공식 채널로, 1theK에 업로드된 MV 조회수 또한 음악방송 순위에 반영됩니다. *English subtitles are now available. :D (Please click on ’CC’ button or activate ’Interactive Transcript’ function) From their debut album up till now, B1A4’s members, led by Jinyoung, the leader, have participated in writing their songs and lyrics. This album is full