America’s Got Talent judge Howie Mandel decided to help Ellen do her dirty work by going backstage at the iHeartRadio Music Festival and pestering all the big name musicians. Watch Mandel raid Demi Lovato’s dressing room, confront Sam Smith about his minty fresh breath, upset Taylor Lautner’s publicist, and mistake bystanders for Kenny Chesney and CeeLo … Continue reading Ellen Trolls Sam Smith, Jared Leto, and Others Backstage at iHeartRadio: VIDEO