The iHeartRadio Jingle Ball Tour is officially underway with a live concert in San Jose this evening. The winter carnival of pop music is making a nationwide tour with their first show in Dallas, Texas on Tuesday, November 29. The event showcased new and established talent with The Chainsmokers closing down the entertainment for the night. They were later joined by Daya for a visual-stunning performance of their song, 'Don’t let me Down.' Recording artists Alex Pall (L) and Andrew Taggart of music group The Chainsmokers perform onstage at 106.1 KISS FM's Jingle Ball 2016 presented by Capital One