What I've learnt about artists over the years is, artists are usually the opposite to their music.

When you are with the wrong person, who doesn't really love you, all you want is to be adored. It makes you more inward and needy. Gross.

I've always been interested in how fast-moving our identity is and that I've never been able to pin down who I truly am. That inspires me to write, because I feel like that cements me a bit, in that I find my identity in being an artist.

Electra Heart is the antithesis of everything I stand for. And the point of introducing her and building a concept around her is that she stands for the corrupt side of American ideology, and basically that's the corruption of yourself. My worst fear - that's anyone's worst fear - is to lose myself and become an empty person. And that happens a lot when you're very ambitious.

Blonde symbolises sexuality and power - it holds very different connotations. The archetypal star has always been blonde.

I am absolutely not a roll-on-stage kind of girl! I would be totally freaked out if I didn't warm up, and I don't know how other singers do it.

Touring can be tough; the crew and I travel everywhere by a big pink bus, and live in petrol stations.