 After Brand Nubian's third studio album, "Everything is Everything" (1994), Jamar discovered and began working with Florida-based hip hop group Dead Prez, signing them to Loud Records.Jamar claims to have lived in the same building as Jay-Z in Brooklyn, as well as hearing his debut studio album, "Reasonable Doubt" (1996), before its release.As an actor, Jamar is best known for his role of Supreme Allah on the TV series "Oz".