Billie Eilish

I really wanted to be a model when I was little. I loved photography, and I loved being on camera. But I was short and chubby, so I couldn't. Anyway, being an artist is way more interesting than just being a model because it's about you and what you want to be. You're not being treated like a clothes hanger.

If I'm inspired to make a certain kind of song, I'm going to make that kind of song, no matter if it's what they know me as or think I am.

I wrote my first song at 12 and remember someone asking, 'What were you going through at 12 that you could write about?' I get what you're saying, but 11, 12, 13 were the hardest years of my life. You learn everything. You learn how horrible things feel.

I had a period in my life where I decided that I would never be bored again and that, if I had any free time at all, I would make plans, and I would always be doing things. It actually was great for a year or so, but then I lost all of my friends.

'Bellyache' is totally fictional. I like writing about things that aren't real. The song is about not trusting anyone and then putting trust in yourself and realizing that you don't know what you are doing, either. Or realizing that things you do with a group of people that you think are cool in the moment are ultimately all on you.

I don't want people at my shows to come out and say, 'I just saw a cool show.' I want them to say, 'I had fun at the show.' I want it to be a collaborative thing and be part of the audience and have them be part of me. I try to interact with everyone there and have them be equal to me because they are.

Being an artist doesn't just mean you have a song. That doesn't make you an artist. The word 'artist' means so many different things, and I feel like to be a real one, you really have to do it all. The people that I think of as artists - Tyler the Creator, Childish Gambino, Kanye West - are doing the most.

I never thought a career as a musician was possible.

I feel like I write so that people can think of it as theirs. If my song is exactly about your life right now, then it is - I don't even want to say that it's mine, because it's yours.

I don't know how to function without music. When I'm not making it, I'm listening to it. It gives me courage and takes care of my mind.