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

By the time I got writing 'Halcyon,' I was on a roll, and I realized I had so much to write about, I realized I had so much built up inside that I couldn't really alleviate before, and then all of a sudden it was like reservoir burst.

Fame doesn't make it hard to date, because I could be seeing someone now and no-one would know. But if you go out with someone who's in the public eye you're asking for trouble. It's double intensity, double scrutiny. Even if I just went on one date with a normal guy, word gets around and that freaks me out. I don't like all that gossipy stuff.

The very first song I wrote was about a boy that I was obsessed with.

I maintain that when I finally retire from my career in music, I will go and live back in Wales - when I am an old person, if I live to be an old person. The water I miss, and the air, there's something different about it. And I miss the simple life.

I played recorder in assembly, then I became passionate about the guitar, I don't know why. I started on electric then moved to acoustic - my brother was playing bass in the next room.

I like the idea about somewhere there being a world... somewhere there's a world that I don't know about. But also, that somewhere, there was once something that disappeared.