After multiple postponements and reschedules through illness, the news metal fans all knew was inevitable has finally filtered through as metal legend Ozzy Osbourne has announced his retirement from touring. In an emotional post made on his social media, the Prince of Darkness told fans: “This is probably one of the hardest things I’ve ever had to share with my loyal fans. As you may all know, four years ago, this month, I had a major accident, where I damaged my spine. My one and only purpose during this time has been to get back on stage. My singing voice is fine. However, after three operations, stem cell treatments, endless physical therapy sessions, and most recently groundbreaking Cybernics (HAL) Treatment, my body is still physically weak. I am honestly humbled by the way you’ve all...