With the possible exception of Eightball & MJG, no single act has done more to put Memphis hip-hop on the map than siz-erp sippin' gangstas Three 6 Mafia. The group's woozy proto-Dirty South style dates back to the early 1990s, and was brought to as large an audience as can be imagined, thanks to their 2006 Oscar-wining theme song for the acclaimed film HUSTLE & FLOW, "It's Hard Out Here For a Pimp."