And the Metal God says he can clearly remember his first gig without drink or drugs, saying it was one of the "most amazing shows he's ever done." Halford tells Classic Rock Revisited: "I was sick of waking up every morning and feeling like sh*t. I think I came to an understanding that I wasn't at my full capacity - I was being held in place by booze and drugs.

"I will always remember the first show I did clean and sober. It was one of the most amazing shows I've ever done. It was in Albuquerque, New Mexico. I literally felt elevated as everything was coming with such clarity.

"I was able to really listen to, love and enjoy the performance of Judas Priest, without having all the other things in front of it. Since that day, it's been a miracle."