Ty Dolla $ign

Though this L.A. R&B multi-instrumental prodigy can spit bars with the best—features on last year's LP, Beach House 3, included Wiz Khalifa, Future and Lil Wayne—he considers himself a singer at heart as his focus lies in sculpting earwormy hits. Good thing, because he's an ace at it (dude wrote Chris Brown's "Loyal").