Biography
Black Nine is a rapper from South Korea who debuted with Mirror. He's part of Vitality crew and he was a participant in Show me the money 6 . Black Nine recently signed with Feel Ghood Music.
His real name is Choi Jeong Sik, born on April 8, 1991. His nickname in Korean is 흑구.
Biography text from Last.fm, available under CC BY-SA.