Complex sentence: On August 1,2009, Billy Currington suffered a concussion at the Big Valley Jamboree in Camrose, Alberta after the stage on which he was performing collapsed during a massive wind storm that also injured Currington's bass guitarist and killed a spectator.
Split into simpler sentences: On August 1,2009, Currington suffered a concussion at the Big Valley Jamboree in Camrose, Alberta after the stage on which he was performing collapsed during a massive wind storm. The collapse also injured Currington's bass guitarist and killed a spectator.