Boogie Down Productions was one of the most important and influential hip-hop groups of the latter half of the '80s. Led by the often brilliant and incendiary MC KRS-One, BDP were pioneers of both hardcore and political (or "conscious") rap -- and if that seems contradictory, it also illustrates the scope of KRS-One's talent for chronicling and even shaping his culture. Musically, BDP usually employed spare, minimal backdrops that accentuated KRS-One's booming delivery, and they were also among the very first hip-hop artists to incorporate elements of Jamaican ragga and dancehall into their style. Early on, BDP devoted itself to brash but realistic narratives of ghetto life, which made them a street-level sensation; however, after the murder of original DJ Scott La Rock, KRS-One -- who now essentially was BDP -- devoted himself to socially and politically conscious material that earned him the nickname "the Teacher." In the process, he helped pave the way for both gangsta rap and the positive, Afrocentric Native Tongues movement -- a legacy no other rapper can claim. KRS-One retired the Boogie Down Productions moniker in the early '90s to release records under his own name; to this day, he remains one of hip-hop's most outspoken and respected intellectuals.