His first foray involved a Las Vegas-based fantasy camp that lets would-be musicians jam with real rock 'n' rollers like Dave Navarro, Jon Bon Jovi and Roger Daltrey.
Lil Wayne, Rick Ross, Nicki Minaj, Mariah Carey and Lil Kim were among the guest stars of Sunday's Summer Jam XX at the MetLife Stadium in East Rutherford, N.