Complex sentence: Walk the Moon performed "Shut Up and Dance" at the 2015 MTV Video Music Awards pre-show on August 30,2015, where the band had played on a circular, multicolored stage prior to the show's start.
Split into simpler sentences: Walk the Moon performed "Shut Up and Dance" at the 2015 MTV Video Music Awards pre-show on August 30,2015. The band had played on a circular, multicolored stage prior to the show's start.