For me, I have to love it and feel something for it because you're going to be stuck with it for two years, and if you don't love it it's going to look like that on screen.
As an actor, I've grown considerably. It's taken me years to get comfortable doing a romantic scene and dancing on stage in front of a live audience. I've really opened up a lot.
Truth is, you make albums, and some of those songs are hits, and some of the greatest hits albums have songs that weren't hits. You have a career, the reason why we're still around 10 years is that we do have successful songs.