The Undone Flapper Bob

Can you believe how much sexy confidence Marion Cotillard is exuding in this pic? According to Bryant, it may be the haircut. "Short hair is very sexy because it really exposes the woman. It opens up the neckline and the back of the neck, showing off the face and eyes," he says.

Here, Marion demonstrates that just because you have a short cut doesn't mean that you are without updo options. "This haircut is a great example of the versatility you can get from a shorter cut like this. It's styled in a very '20s fashion with sleek waves that are almost a modern take on finger waves." To get this style, make loose waves with a curling iron, spray with texture spray while scrunching the waves, then roll under and pin, leaving the front section loose for extra hotness.

Photo: Rex/Rex USA