Inevitably, and rightfully, at their more-or-less co-headline concert at a busy O2 Arena, both Judas Priest and Alice Cooper found ways to memorialise their late comrade in metal, the pioneer Ozzy Osbourne,

"Pirates of the Caribbean" star Johnny Depp joined Alice Cooper on stage in London Friday to honor late rock icon Ozzy Osbourne with a performance of Black Sabbath's hit "Paranoid."