Whilst in prison Chapman became a Five Percenter and began working under the alias 'Intelligent Hoodlum', and released the self titled album Intelligent Hoodlum on A&M Records. In 1988, he appeared alongside fellow Juice Crew members on the Marley Marl compilation album In Control Vol.1, on the solo tracks 'The Rebel' and 'Live Motivator'. After a conviction that year (he was only 16 years old) for robbery charges followed by serving time in the Elmira Correctional Facility. In 1987, he appeared as MC Percy on the B side of the 12' 'Juice Crew All Stars' and on the last Super Kids single, 'Hot Day Master Mix' appearing on tracks 'Hip Hop Kids Live At U.S.A' and 'Go Queensbridge'. Chapman was then made a junior member of the Juice Crew alongside artists such as Big Daddy Kane, Kool G Rap, and MC Shan. This output caught the attention of Marley Marl, who in 1986 produced the duo's single 'The Tragedy (Don't Do It)', and 'Stunt of the Block'.

Khadafi began his career as one half of the duo Super Kids, along with Queensbridge producer DJ Hot Day.

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