Demi Lovato performs 2017 iHeartRadio Music Festival on September 23September 25, 2017Performances, Pictures Share your love DJ Khaled and Demi Lovato perform onstage during the 2017 iHeartRadio Music Festival – Night 2 held at T-Mobile Arena on September 23, 2017 in Las Vegas, Nevada. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Share your love Previous Post Demi Lovato at Global Citizen Festival in Central Park in NYC – September 23rd Next Post Demi Lovato Looks Stunning in Black During Launch Party in London – September 26