While Cynthia Nixon was born blond, it's those dyed red locks from her "Sex and the City" days that have become her signature. But as of last month, Cynthia has a brand new hairdo: no hair at all! It's for her role as a cancer patient in the Broadway play "Wit." But Cynthia isn't the only female star who's gone chrome-domed. Keep clicking to see more celebs who have taken razor to head.