It's all about the clothes.

This is my daughter dressed as Cinderella in the Disney Store in New York. She loves to dress up, to look pretty. She has a four-year-old idea of what pretty is, but her four-year-old face can pull off practically anything. Her usual dress-up garb is a purple dress, pink wings, white wedding-style headband with Mickey Mouse ears, shoes, and a wand. Sadly, I don't have a picture of that, but I'm sure it's etched pretty well into the minds of commuters who saw it at the local Metra stop a while back.