Video: Lady Gaga wears Ozzy Osbourne top and plays Crazy Train at her show | Daily Mail Online

Lady Gaga honoured the late Ozzy Osbourne during her curtain call at a sold-out show in San Francisco's Chase Center, wearing a T-shirt featuring the music legend and performing his hit 'Crazy Train'. She invited her entire dance team back on stage, jumping and celebrating Osbourne's legacy with fans in an electrifying tribute.