It's so much work to make a movie, and for me it has to get me off my butt. To get me actually writing you have to strike something inside, you have to hit a power main to get the energy. You have to strike something you care about.
I have to own something before I can say it, and I have to own it before I can sing it as well, emotionally. I only enjoy acting and singing if I am believing what I am doing.