【k-pop】블랑세븐(BLANC7)- HELLO 뮤직뱅크 (MusicBank) 170804

【k-pop】블랑세븐(BLANC7)- HELLO 뮤직뱅크 (MusicBank) 170804

【k-pop】블랑세븐(BLANC7)- HELLO 뮤직뱅크 (MusicBank) 170804

http://www.nicovideo.jp/watch/sm31688105