Teenage Dream' was the hardest breakup for me.

One thing I'd tell an up-and-coming singer is to never rely on other people for anything. The more self-sufficient you can be, the better off you'll be.

There's a lot of little 'Bonnie-isms' in 'Teenage Dream' that I was hoping to keep for myself.

In my mind, I imagined L.A. to be skyscrapers on the beach. Of course, that's not what it actually looks like. And growing up watching 'Beverly Hills 90210' and 'Melrose Place,' I always had an obsession with L.A. and California in general.

Harry Potter' really harnessed the imagination of so many young-adult minds, and it's the same with the 'Divergent' series.

When I was young, I never thought I was going to be a writer! I was academically orientated and active at sports, but I didn't have one creative bone in my body.

Anyone who lives within his means suffers from a lack of imagination.

Gender fluidity is not really feeling like you're at one end of the spectrum or the other. For the most part, I definitely don't identify as any gender. I'm not a guy; I don't really feel like a woman, but obviously I was born one. So, I'm somewhere in the middle, which - in my perfect imagination - is like having the best of both sexes.