They were and still are a groundbreaking band. Even though they haven't released any new music in ages, you can put on the first Black Sabbath album and it still sounds as fresh today as it did 30-odd years ago. And that's because great music has a timeless ability: To me, Sabbath are in the same league as the Beatles or Mozart. They're on the leading edge of something extraordinary.

I rarely write by myself.

We had to sit in this courtroom in Reno for six weeks. It was like Disneyworld. We had no idea what a subliminal message was - it was just a combination of some weird guitar sounds, and the way I exhaled between lyrics. I had to sing 'Better by You, Better Than Me' in court, a cappella. I think that was when the judge thought, 'What am I doing here? No band goes out of its way to kill its fans'.

For us Rock and Roll Fantasy Camp is bigger than the music. It is very much an experience that brings a lot of skills and discoveries about yourself together. In that respect, it also enables you to learn that being in a band is a lot tougher than sitting around and playing guitar in your bedroom.

Never lose perspective on where you are and what you've got. And how you got it.

All I've got on my iPod is every single Queen song and every single Judas Priest song. Queen were an incredible heavy metal band. I saw them on their first ever tour, at Birmingham Town Hall. They just blew me away.

I do my best; I put out things I believe in and if you don't like it then pass on to something else.