His former group paid tribute to Di'Anno in a social media post on Monday.

“We are all deeply saddened to learn of the passing of Paul Di'Anno today. “Paul's contribution to Iron Maiden was immense and set us on the path we have been on as a band for nearly five decades,” the statement reads, alongside a photo of Di'Anno with founding member and bassist Steve Harris.

“His groundbreaking presence as a frontman and singer, both on stage and on our first two albums, will be fondly remembered not only by us, but also by fans around the world,” the group's message continued.

“We were very grateful to have had the opportunity to meet him and spend time with him again a few years ago. On behalf of the band, Rod and Andy and the entire Iron Maiden team, we offer our deepest condolences. Paul's family and close friends rest in peace, Paul.

Harris gave a quote in the statement that reads: “It’s just so sad that he’s gone. I only recently had contact with him when we wrote to each other about West Ham and their ups and downs. At least he was still on stage until recently.” Something that kept him going was being out there whenever he could. Rest in peace, buddy.