CARSON, CA - MAY 11: Singer Demi Lovato (ring detail) performs at 102.7 KIIS FM's Wango Tango 2013 at The Home Depot Center on May 11, 2013 in Carson, California. (Photo by Chelsea Lauren/WireImage)
CARSON, CA - MAY 11: Singer Demi Lovato (ring detail) performs at 102.7 KIIS FM's Wango Tango 2013 at The Home Depot Center on May 11, 2013 in Carson, California. (Photo by Chelsea Lauren/WireImage)
See photo in original gallery.