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

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.