Among the many stars publicly mourning Ozzy Osbourne is Johnny Depp. Together with Alice Cooper, he paid tribute to the Black Sabbath frontman on stage.

Johnny Depp paid tribute to Ozzy Osbourne with a special concert appearance three days after the heavy metal icon’s death at age 76 on Tuesday, July 22. Depp, 62, walked on stage during rock legend Alice Cooper’s show at The O2 Arena in London on Friday,

Johnny Depp made a surprise appearance during Alice Cooper's latest sold-out gig in London, as he joined the rocker for a performance of Black Sabbath's 'Paranoid' during a tribute to Ozzy Osbourne.