[MV] (제이유나) _ KNOCK KNOCK (with Hong Isaac(홍이삭))

[MV] (제이유나) _ KNOCK KNOCK (with Hong Isaac(홍이삭)) K-POP Wonderland, 1theK K-POP의 모든 즐거움을 1theK(원더케이)에서 만나보세요! :) Welcome to the official YouTube channel of K-POP Wonderland, 1theK ““1theK Originals““ Subscribe 👉 [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. #NEWRELEASE#MV#1theK#원더케이 ▶1theK YT :