PIC: Hayden Panettiere Chops Off All Her Hair!

Credit: Angela Weiss/Getty Images

Change is in the hair!

Hayden Panettiere debuted a brand new, super short hair at the Global Home Tree Earth day event in L.A. Thursday. The Heroes star, 20, hit the red carpet wearing a skintight black dress with a sheer top while cuddling with her boyfriend, boxer Vladimir Klitschko.

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Can anyone wear short hair?

"Women say short hair isn't sexy, but it is," star stylist Ted Gibson, who has worked with Angelina Jolie and Kate Gosselin, tells UsMagazine.com. "Most women can wear this look."

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It's not Panettiere’s first hair switchup this year.

In January, she ditched her blonde locks for a deep red 'do.

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"I was tired of being a blonde," she told Us then. "You get stuck in one thing and known for one thing... It's fun to change things up, and I feel I don't have to overcompensate as much personality-wise when I have red hair as I do with blonde hair."