4. Meek Mill
Label: Maybach Music Group
From: Philadelphia, Pennsylvania
Active Since: 2005
Best Known Song: "Ima Boss" f/ Rick Ross (2011)
We're not sure if it's his high-volume delivery or the aggression of his hooks, but when Meek Mill starts rapping, everything just gets turnt up. The MMG soldier had a solid 2011 and he's continuing the momentum this year. His Summer Jam performance was almost good enough to make us forget all about the Nicki Minaj fiasco, and his mixtape Dreamchasers 2 was one of the hardest releases of the year. Plus, "Ima Boss" and "House Party" are still on constant rotation on the DJ deck. You best believe Meek Mill's going to bring the drama on MMG's upcoming Self Made Vol. 2.