04/09/2009 05:12 am ET | Updated May 25, 2011

Hayden Panettiere Shoves, Yells At Press

Hayden Panettiere lost her cool at an event in Hawaii over the weekend.

The 19-year-old Heroes star -- who recently split with Milo Ventimiglia because of her club-going ways -- was testy when she first stepped on the red carpet at a fundraiser benefiting the Rehabilitation Hospital of the Pacific Foundation Sunday in Honolulu.

"Back up!" she yelled at photographers.

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