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.

For the cover during the London gig, Cooper was joined by actor/guitarist Johnny Depp, who made a late entry onto the stage and locked in alongside Nita Strauss, Ryan Roxie and Tommy Henriksen to hold down Tony Iommi’s iconic riff.

Fans at London’s O2 Arena got more than they bargained for when Johnny Depp made a surprise appearance during a high-voltage Ozzy Osbourne tribute.