Biz Markie is a rapper, DJ, and producer from New York City. He is best known for his 1989 hit single 'Just a Friend'. He has released several albums throughout his career, including Goin' Off, I Need a Haircut, All Samples Cleared!, and Weekend Warrior. He is also a member of the Juice Crew, a hip-hop collective that includes Big Daddy Kane, Kool G Rap, and MC Shan. Biz Markie is considered to be one of the most influential figures in hip-hop music.