Hayden Panettiere showed off her newly cropped ‘do as she walked the red carpet at the Global Home Tree Earth Day reception, hosted by “Avatar” director James Cameron in LA last night.

It most be the season for getting the chop, as Renee Zellweger also sported a new shorter style on the red carpet last night.

Hayden walked the red carpet with her beau Vladimir Klitschko wearing an Emilio Pucci Pre-Fall 2010 LBD.

The Pucci mini has been modified from the dress presented as Hayden’s dress has less sequins, blue sequins and a slightly different pattern of sequins.

She paired with tights, a silver clutch and black pumps.

Although her look is very dark, the new do has brighten up her face.

Yay or nay on Hayden’s new haircut?

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Credit: Style.com, AP & Getty