She's known for playing the uptight Peggy Olson on "Mad Men," but in real life, Elisabeth Moss is ready to have a little fun.

Moss debuted her blonde new 'do last night at the premiere of "For a Good Time Call" in New York, sporting a pixie cut that reminds us a lot of Ashlee Simpson's famous look.

It's definitely a more fashion-forward cut for the star, who may be trying to break free from her '60s alter ego.

What do you think of the look? It's a big change, but we think it really works for her.

Vote in the gallery above and see more stars who have gone from brunette to blonde.

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