I love to go on tour and perform. I love all the parts of the process.

I've written what and when I want to. It's been about expressing myself. But with the degree, I had to learn to do everything in a very specific, disciplined way. I am very disciplined, but this demanded a totally different kind of discipline. A real challenge.

I've always written in a free, unencumbered way.

I found my sound early on. Look at U2: they haven't changed their music for 20 years. Anyway, many people come unstuck when they try to change what they do and what they are known for.

I don't listen to a lot of music, and wouldn't necessarily sit down and put on the radio. If I did, I'd probably put on a bit of classical stuff.

I am constantly being told that I have been a big influence for many people, including other musicians.