Usher has hit out at the idea his Super Bowl performance was “perverted”. The 45-year-old singer has laughed off the reaction to his steamy collaboration with Alicia Keys, 43, at the halftime show as they reunited to perform their 2004 hit ‘My Boo’, with people joking that the ‘Girl On Fire’ hitmaker’s husband Swizz Beatz, 45, should be concerned. He told ‘The Breakfast Club’: “In no way anything done there should have been viewed as bad or in any way perverted or anything like that.” The ‘Love In This Club’ singer insisted “no disrespect” was intended and explained that the intimate performan…