What is the one thing you wish you could tell your 16-year-old self?
Not to worry so much.
What is the most-read book on your shelf?
Just Kids by Patti Smith.
What's your guilty pleasure?
Eating cereal after dinner. Crunchy Nut Cornflakes with cold milk is my favourite.
Who would play you in the film biopic of your life?
What is your most treasured item in your wardrobe and when did you get it?
It is now going to be this beautiful jacket that was made for me [especially for the Burberry show tonight]. It is the only one that exists in the world.
Which three films could you watch over and over again?
Paris, Texas I find really beautiful; I love the shots and find it very mysterious. My Own Private Idaho because I love River Phoenix and Point Break, with Keanu Reeves, because it makes me want to surf even though I never will.
If you could raid anyone's wardrobe who would it be?
Grace Jones. I don't know if I could quite pull it off, but I would give it a go.
What song or album would be the soundtrack to your life and why?
Aladdin Sane by David Bowie. It was the first album I ever bought, when I was eight. It's been with me all this time and I listen to it all the time, particularly when I want to escape.
Where is your favourite place in the world and what makes it so special?
Strasbourg, France. I lived there for a year and it is full of happy memories.
What are the three things that you would save from your house in a fire?
My guitar, my beautiful Chagall painting - it isn't an original, but I love it - and the third would be my laptop, because it has all my songs on it.
What was you biggest ambition at age 10?
I wanted to go to Africa and draw pictures of wild animals. I don't know why. I thought that was a job, but I don't think it is. Maybe there is still time.
If you could invite four people living or dead - to dinner, who would they be and what would you serve?
I'm vegetarian, so everyone is going to have to deal with that. I would cook pasta and tomato sauce. I would invite Nina Simone, I think she'd be quite dramatic. I'd like Naomi [Campbell] to come, because I think she's amazing. Gloria Steinem, to talk to her about feminism and David Bowie, because I just want to talk to him about songwriting.