Lauryn Hill is quite political and is very bold and isn't afraid of wearing her heart on her sleeve, and same with Bjork, except she is a little bit more kind of fragile.

It's usually a big kind of vent of frustration or anger or sadness that puts me in the right frame of mind to write. It's such a cliche to say that artists write when they're down, but it's true for me. It's a relief to get out what's eating away at my heart or my soul or my head.

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.

Well, on tour I eat terribly, so I balance that by running a lot. And then I started to run with my fans in certain cities. It sounds very nerdy and un-rock n' roll, but I like it. It's fun, and it's better than meeting fans in weird, awkward circumstances. So I take them running with me.

You pick up loads of baggage with your first record with reaction to it from fans and critics. So I went to Ireland by myself for a couple of weeks with my guitar. I read lots of poetry, I read Patti Smith's autobiography and started words and phrases and then songs started to take shape.

I wrote a lot of poetry that was based on stories of the sea and I was really inspired by that.

Some people don't have a way of that catharsis and I do, so I'm lucky in that sense that people listen to my songs and enjoy my songs. It's a really important thing for me, it's how I channel everything. I don't really know what I'd do if I didn't write songs.