BLANC7 (블랑세븐) Featured KOREAN BLANC7 – HELLO HELLO “HELLO” [EP] WORLD WIDE 2017.08.07 Shinwoo, Jean Paul, Teno, D.L, Spax, K-Kid, Taichi Lyrics/작사: 어벤전승, MADX Composer/작곡: 어벤전승, MADX Arranger/편곡:…