Ever since I've been young I've been fascinated by the human body. I've written songs about it, but you can become quite morbid if you think about it too much - paranoid and a hypochondriac.
I met Prince William at a musical festival and he let me know he was a fan of my music. But the invitation to sing at his wedding reception came completely out of the blue. The fact that Kate and William knew the words to my songs was very touching.
The very first song I wrote was about a boy that I was obsessed with.
I record stuff all the time, like little vocal things. I write random things down... Sometimes I just get things stuck in my head and I record them, and that actually becomes a song quite a lot of the time.
I feel like my songs are very relevant and very meaningful, but I literally have to get rid of the nostalgia for shows because I would just be mess on-stage otherwise.
I think all the covers I do have nice sentiments, particularly 'Your Song.' People write me very sweet messages about that song, though I'm sure there are people out there saying that I've ruined it too!
When I'm writing obviously I have all the nostalgia in the world, I have all the emotion in the world, but then when I actually perform, I need to just perform it, and that's it. I do retain like a little bit of it because I have to, I sing and perform the songs so I have to - it's a performance of the songs - but I just have to get the right balance.
Even when I'm in quite a happy state of mind, I like writing really sad songs. I think a lot of people do.
I wrote 'Lights' a long, long time ago. And I expected it to be on the album, because it was - I wrote it with 'Biff' Stannard. And he wrote every single Spice Girls song and every single pop song of the 90s, basically. So I thought, you know, I was really lucky to work with him, but I didn't think it would be a big song for some reason.
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.
I still don't know if I can write songs. I don't think anyone ever knows if they can write songs.
Since I met Starsmith, my producer, I really feel like I'm making music because we write it together and produce it together. I've got a proper involvement in the end product as opposed to just writing a song and finding someone else to produce it.
Stuff just comes out all the time, sometimes when I sing live it really comes alive and I sort of... I write songs and then almost... not forget about it, but live it really comes out and I suddenly realise what I've written. I don't know where it all comes from.
Two things I'm obsessed with are the countryside and fields and being in the open space and body parts, so you'll hear me mentioning body parts and human anatomy. I've listened to my songs and I think I am quite visual and I talk about bones and flesh a lot.
I believe that when you have fans, they invest in you not just as a singer but as a person as well. It's not enough to just have good songs and a good voice.
Cover versions, that's my forte, that's all I ever used to do. When you play your own songs, it's quite scary, 'cause I'm quite honest and open, they can be very revealing. But covers, I don't have to think about, just get me up there!
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.
I just sing and write songs and wear what I want. It's quite a good job really. If I wanted to I suppose I could become more of a fashion icon, but singing is my thing.
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.
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