Complex sentence: Swift performed "Shake It Off" for the first time live at the 2014 MTV Video Music Awards on August 24,2014, wearing a shimmering silver two-piece with a crew of male dancers in suits and female dancers in matching charcoal-colored outfits.
Split into simpler sentences: Swift performed "Shake It Off" for the first time live at the 2014 MTV Video Music Awards on August 24,2014. Wearing a dressed in a shimmering silver two-piece with a crew of male dancers in suits and female dancers in matching charcoal-colored outfits.