I've never been particularly good at explaining or even understanding what this sort of rage is that is so accessible to me. I'm not an out-of-control person, but I can access in my work very easily a feeling of real fury. Thank goodness I've channeled it into my work, I guess.

It is scary to write - period - for me, but once you get past the idea that it's scary to write, I still can only be who I am. As a writer, my job, to me, is to expose myself - to really sort of dig in and find out who I am and then put it on the page.

I never wanted to write 'Mamma Mia!' or 'The Book of Mormon' - they're not my thing, I don't care about them. What I do is very different.

I don't want costumes and makeup between me and the audience - I want more direct communication. There's something for me about being honest on stage, and I'm at my most honest when I'm behind a piano. So I prefer my concert performances.