The Bronx may have birthed hip-hop, but Brooklyn can claim to have raised some of the music's most celebrated emcees. Check out the proud borough brags of the Audio Two, Special Ed and Big Daddy Kane back in the '80s, before Biggie, Jigga and Ol' Dirty claimed BK anthems in the '90s. Rugged workouts from Brownsville's M.O.P. and Heltah Skeltah round out the collection.