For someone so conflicted, who am I to give advice to anybody? It’s such a funny, grandiose idea

At the beginning of my career I was going through a really weird phase of dressing in boys clothes. I would only wear one American Apparel T-shirt and shorts and brogues the whole year round. Not the same T-shirt, obviously, but one style of American Apparel T-shirt. I think I was going through a tomboy stage.

It's hard to dance with a devil on your back, So shake him off...

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.

But I was always much more interested in reading fashion magazines than I was music magazines when I was a teenager. Just that sense of romanticism and escapism and the dream of it has always been quite alluring to me, as well as that sense of becoming a character through clothes.

I think I should get a bigger between-the-song persona, so then I'm not wandering around the stage like some mad old auntie that's saying hello to people and falling over.

I think an encore is perfectly acceptable, but I find it so weird when people do two or three.