B1A4 – What's Going On?
Already in their 7th year since debut, B1A4 is a group that widens their potential, not only challenging hemselves in music, but also many different genres of entertainment.

Beginning with a narration rap, "What's Going On?" is a refreshing song with unique composition and quickly changing transitions.

B1A4 – 이게 무슨 일이야
벌써 데뷔 7년차가 된 B1A4는 음악에 대한 끊임없는 새로운 도전 뿐만 아니라 뮤지컬, 연기, 예능 등 활발한 개별 활동을 통해 활동 스펙트럼을 넓혀가고 있다.

'이게 무슨 일이야'는 내래이션이 랩으로 이어지는 독특한 구성과 쉴 새 없이 바뀌는 곡의 전개가 신선한 곡이다.

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