Heidi Klum

For me, my No. 1 priority in life was to always have a family. If I had not been able to work anymore, then that would have been it. I would definitely choose family over career. It's really great that my field has allowed me to work and let me do things that a woman does naturally.

I haven't modelled since I was 12 - that was a one-time thing, and I did it as a kid to make a little money to save up for university. Acting is my first love as well as writing and eventually producing and directing.

After decades spent in rewrite rooms surrounded by other shouting writers, I discovered that I work best alone. I like being in charge of my time, working out the problems according to my own rhythms and being able to nap. That's a big one, the napping on demand!