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 try to maintain a healthy dose of daydreaming, to remain sane.

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.

I'm a choir girl gone horribly, desperately wrong.

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.

Where's my heart at? Aw. Um, in my chest. I think it's in there - on the right hand side. Sometimes it's in my mouth and sometimes I can feel it in my stomach, when I get really nervous. So it's pretty physical.

I've been having this really weird anxiety dream about arriving too late or too early, and the people in charge are like, 'You have to leave! You have to go back to the hotel and get ready!' And I use the wrong exit, and I'm running down the red carpet in ­pyjamas, like, 'No! Don't look at me!'