Success, I've come to realise, is fleeting so you shouldn't value it too much.

I'm interested in how identity is transient. How do we know who we really are, when different situations and environments dictate how we behave? I'm interested in the role we all play. We spend our whole lives becoming ourselves when we are born as no one else.

I've always been interested in how fast-moving our identity is and that I've never been able to pin down who I truly am. That inspires me to write, because I feel like that cements me a bit, in that I find my identity in being an artist.

Touring can be tough; the crew and I travel everywhere by a big pink bus, and live in petrol stations.

[Being in the States] is almost like being on a holiday. It's kind of annoying because everyone's like "Oh, you're so obsessed with America," but it's not really that. I just really enjoy being here - I'm not the first British artist to make music here and be inspired by the country.

I was always very creative. I was always into acting and dancing when I was younger.

I feel like everyone has the right to privacy, even if you're the most famous person in the world.