HOLLYWOOD, CA - AUGUST 28: Singer Demi Lovato performs onstage during the Time Warner Cable 2015 MTV VMA concert to benefit Lifebeat at Avalon on August 28, 2015 in Hollywood, California. (Photo by Jason Kempin/MTV1415/Getty Images)
HOLLYWOOD, CA - AUGUST 28: Singer Demi Lovato performs onstage during the Time Warner Cable 2015 MTV VMA concert to benefit Lifebeat at Avalon on August 28, 2015 in Hollywood, California. (Photo by Jason Kempin/MTV1415/Getty Images)