Music is an extraordinary vehicle for expressing emotion - very powerful emotions. That's what draws millions of people towards it. And, um, I found myself always going for these darker places and - people identify with that.

I sang a lot as a little girl and entered competitions. I loved singing in choirs, but it was as I got older that I really found my voice.

I have a reputation for being cold and aloof, but I'm so not that woman. I'm passionate. I love my girls, being with my girlfriends, getting involved with issues that affect other women and children who are suffering.

I want to be true to who I am.

The contrast of the world that we live in and the world that is here in Aspen and the world inhabited by women who have no resources, little or no, very few resources - huge disparity.

I have a lot to be grateful for.

The very fact that the planet is probably unsustainable with all that we've done to it and are doing to it, it's an appalling piece of evidence. It shows our complacency, our lack of passion or inclination to be authentic and really understand our true values. It's consistently depressing, but nevertheless, we carry on.