Jessica Chastain and Alyson Hannigan, who celebrate their 38th and 41st birthdays on Tuesday, are just two of our favorite carrot-top women. Check out some more in this slideshow.
Who knows? It may be true that blondes have more fun, but redhead fans still had to wonder why Laura Prepon would dare change her hair color. Still, we will choose to think of her as red-haired Donna Pinciotti from "That '70s Show."