LAS VEGAS, NV - SEPTEMBER 19:  (L-R) Drummer Will Champion, guitarist Jonny Buckland, frontman Chris Martin and bassist Guy Berryman of Coldplay perform during the 2014 iHeartRadio Music Festival at the MGM Grand Garden Arena on September 19, 2014 in Las Vegas, Nevada.  (Photo by Ethan Miller/Getty Images for iHeartMedia)