Yuki Chiba (千葉雄喜; born April 22, 1990, Tokyo, Japan), also known as KOHH is a Japanese-Korean rapper, singer and songwriter. Chiba started producing and recording music at the age of 18 while making various mixtapes, until he met producer 318 and started releasing material under a label. Chiba has been mentioned several times as a major influential force to the Japanese hip hop scene in recent years.