Avril Lavigne, Demi Lovato, Miguel and Fall Out Boy perform at KIIS FM's Wango Tango 2013 at the Home Depot Center in Carson, California on May 11, 2013. UPI/Jim Ruymen
will.i.am perform sduring KIIS FM's Wango Tango 2013 at the Home Depot Center in Carson, California on May 11, 2013. UPI/Jim Ruymen