'I Know You Care' is about my dad. And I haven't seen him for a long, long time. And my parents divorced when I was really young. And I guess I just wanted a - it was my way of saying that I wasn't bitter or angry anymore. I was just sad and just felt like something was missing.

I like being by the ocean.

When I sing along with Britney Spears I will sing in an American accent. But eventually I found my own voice. My songs are so brutally honest, it would be alien to sing in any accent other than my own. Don't get me wrong - I can imitate singers. I can do bar mitzvahs and weddings.

The smallest changes, like I stopped eating meat and I've been doing different kinds of exercise like Yoga and stuff like that, little changes have made me feel a bit more at peace I think.

I was super brainy and a proper geek at school, but there would always be a boy. But that sort of obsession did turn me into a songwriter. My writing has always come from that feeling of infatuation.

My fancy dress costume of choice is... something 1920s or 30s, when there was still so much elegance and attention to detail. An excuse for ultimate dressing-up indulgence.

Mumford & Sons' music appeals to a lot of America. I'm really proud of them.