I've been in the public eye for about 15 or 16 years and I'm very aware that fame is not a given. I have to maintain it. It's not just something that will always be there.

I keep fit by running after my three boys all day.

When I'm lying in bed I think about the next collection. That makes me sound insane, doesn't it? That I'm getting into bed with David Beckham and thinking about clothes.

I have started smiling! I've mastered this smirk; it's a smile that isn't a smile.

I've always been a worker. I've never expected be given anything.

You have to remember that when you are a performer you become a celebrity, but you are not saving lives. It's not that important.

For me to go to America - which I find such a positive place - well, I took to it like a duck to water.