Selena Gomez and Taylor Swift Had the Best Reactions to Demi Lovato's VMAs Performance

Demi Lovato's performance of "Cool For the Summer" at the 2015 MTV Video Music Awards was superhot — and Selena Gomez and Taylor Swift agree. While Demi was singing at the Pepsi Stage in downtown LA, a camera caught Taylor and Selena's reactions to her sexy dance moves and surprise guest appearance by Iggy Azalea. The Microsoft Theater, where the main VMAs stage was located, was a little dark, but you can clearly see Taylor's jaw drop when Demi begins her set wearing a skin-baring leotard, while Selena claps excitedly through the whole thing. Watch the video above, then check out Selena's run-in with Nick Jonas and her best moments with Taylor.