Stars change their hair like they do underwear. What do you think of Scarlett Johansson's short upswept hairdo she sported last week at the LA Shorts Fest in West Hollywood?

Scarlett's "Iron Man 2" wowed fans at Comic Con over the weekend. Johansson said she trained in mixed martial arts so she could perform her own stunts. "Iron Man 2" is set to hit theaters in May 2010.

Image © AP Photo/Chris Pizzello

Image © AP Photo/Chris Pizzello

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(This news article provided by World Entertainment News Network)

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