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.

My fans are so funny, they make me laugh so much. I've got some really, really, funny, clever fans.

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

Drake, I'd like to collaborate with. He's a phenomenal lyricist. Probably the best rapper in the world at the moment. I love Kanye but there's something about Drake; he's more straight up, really clever and really poetic and metaphorical - I love that. He's just clever.

I still love the skinny jeans thing and I wear my favorite leather jacket constantly. I like being kind of a rock star. I love that I can feel comfortable in a small dress or I can feel comfortable wearing a baggy T-shirt.

Christmas in L.A. is weird. There's no snow. It's not even cold.

I'd like to look like Madonna when I'm her age. I also look at athletes and love their bodies. I've always wanted to be muscly, not skinny. A lot of women yo-yo around, but I'm always aware if I'm getting a bit out of shape. I never look at the scales but I can just tell. It goes on my tum and bum.