 The audience got struck. The audience got hit. The audio courtesy of Teresa Jack, a spectator who is watching the show from the field. She says she saw a rocket fly over her head and into the stadium's east stands, explode, and send a big cloud of smoke into the air. Organizers stopped the show for about 15 minutes while injured audience members received medical attention. A festival spokeswoman says the cause of the mishap is under investigation. I'm Mike Hempen.