I can't wait to get on stage, because there you don't worry about whether you'll ever get married because your life is insane, or whether you'll ever have another boyfriend again, you don't worry about the typical boundaries of how your life has to be.

Bono told me how to dance in high heels and he also told me about U2's Glastonbury performance and how everything that could have possibly gone wrong went wrong, including him ripping his trousers on stage. I think he was lunging and his trousers ripped! He was telling me how he had to find a new way of performing that didn't involve moving.

I've always been able to just concoct a melody quite easily - it's just kind of instinct, really. You've got to channel your subconscious.

Worst nightmares can also appear with your eyes open.

I get in fights with my sister all the time. She comes on the road with me and we fight - like sisters do.

Well, I'm completely normal and mellow.

The stage is the place I feel comfortable - it's almost as if real life is where I feel most nervous. Conversations are a lot more nerve-wracking.