#18. Wiz Khalifa (24)
The Pittsburgh MC nabbed headlines (and probably some sweet Steelers tickets) with his hit single "Black And Yellow", and hasn't slowed down his roll. He's become best buds with Snoop thanks to their favorite extracarricular activity — smoking weed, in case you missed the joint practically glued to Wiz's lips at all times — and has the rest of hip-hop on speed dial. He also managed to put a ring on Kanye's ex, Amber Rose, who clearly has a preference for talent.