Jim Dyson/Getty Alice Cooperpaid tribute toOzzy Osbourneduring his latest performance in London — but not without a little help from some pals, includingJohnny Depp. The rocker, 77, showed love for Osbourne on Friday, July 25, three days after hisfamily announcedhis death at age 76. Cooper surprised the crowd at London's O2 Arena with a special appearance from Depp, 62, as the group performed Black Sabbath's 1970 hit "Paranoid." Depp — who is Cooper's Hollywood Vampires bandmate — walked on stage with a guitar in hand halfway through "Paranoid." Cooper, rocking an Osbourne T-shirt, later raised his fist in the air as the song came to a close, as seen in concert video footage shared onYouTube. Jim Dyson/Getty The performance itself was part of Cooper's sold-out London gig with Judas Priest, timed to the Alice Cooper band's first new album in over 50 years,The Revenge of Alice Cooper. The LP marks the band's first album of new material since 1973'sMuscle of Love. https://people-app.onelink.me/HNIa/kz7l4cuf To celebrate the occasion, Depp stuck around for one final song after the Osbourne tribute, performing "School's Out" with original band members Dennis Dunaway, Neal Smith and Michael Bruce. Cooper and Depp are longtime collaborators themselves, performing in the supergroup Hollywood Vampires alongside Joe Perry and Tommy Henriksen since 2012. They released their most recent studio album together,Rise, in 2019. Jim Dyson/Getty In an interview withPlanet Rockon July 25, Cooper shared memories of Osbourne, whom he said he shared a "mutual respect" for after collaborating and performing at the same shows over the years. "I was on my way to the stage when I heard about [his death]," Cooper said. "And I went, 'Oh, that's not right.' He just did this [show]. And I saw him. He was signing well. But when it finally hit, it was just one of those, 'Yeah.' Even though you know it's coming ... what a shock to the system." "At the end of the show, I just said, 'Everybody, let's say goodnight to Ozzy. And everybody just [chanted], 'Ozzy, Ozzy.' He was a very beloved character in rock," continued the rocker. Cooper also called Osbourne a "lifer" in rock music during an appearance onThe Scott Mills Breakfast Show. "There's certain guys who are lifers. The Stones, The Beatles — that are still doing it," Cooper said. "And doing it amazingly well. And I just felt, 'I'm going to do this til' I can't do it.' And I think Ozzy was the same thing." Osbourne's family announced his death in a statement shared with PEOPLE, revealing that he was "with his family and surrounded by love," five years after the rocker announced in January 2020 that he wasdiagnosed in 2003 with Parkinson's disease. Osbourne was also honored byYungblud, Elton John,Jason Momoa,Gene Simmonsand others following his death. Read the original article onPeople