Demi Lovato, Nick Jonas, Kanye West perform at the iHeartRADIO Music Festival
Saturday, September 19, 2015 - 19:30
in Psychology & Sociology
Karen ButlerLAS VEGAS, Sept. 19 (UPI) -- The star-studded, 5th iHeartRADIO Music Festival is underway in Las Vegas with a lineup that includes Sam Smith, Coldplay, Jason Derulo and Demi Lovato.