Getting his first big break when he signed to Jay-Z's Roc-A-Fella/Def Jam, Uncle Murda's reputation in the underground has grown steadily. He snagged collaborations with everyone from Busta Rhymes to Fabolous and built a fan base with his street-influenced mixtapes.  Now affiliated with L.A. Reid's Epic Records, the BK rapper (known today as U.M.) released his latest project, The First 48, in 2013.

HEARTBEAT OF A CLASSIC

RAP LEGEND: AZ