LONDON, ENGLAND - SEPTEMBER 28: Def Leppard perform at the NFL football match between Oakland Raiders v Miami Dolphins at Wembley Stadium on September 28, 2014 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - SEPTEMBER 28: Def Leppard perform at the NFL football match between Oakland Raiders v Miami Dolphins at Wembley Stadium on September 28, 2014 in London, England. (Photo by Karwai Tang/WireImage)