The Killers cut their concert at Morrison, Colorado’s Red Rocks short on Thursday night after frontman Brandon Flowers left the stage following the band’s second song. A doctor later stepped onstage to tell the audience that Flowers had a throat injury, and said continuing to sing would damage his voice, according to Denver NBC affiliate KUSA. Drummer Ronnie Vannucci said the band would make up the show to the fans. A rescheduled date has not yet been announced.