Travie McCoy + XV

Gym Class Heroes' lead MC, Travie McCoy, has been out behind his solo effort, June's Lazarus, a record gunning for that mainstream-radio vibe, exemplified by his team-up with Bruno Mars on "Billionaire." Tonight he'll share a bill with Wichita, KS, up-and-comer XV, who stylistically fits in with Midwest rappers like the Cool Kids.