Hayden Panettiere shows off new bangs on the green carpet as she hosts the Whaleman Foundation Benefit at Hollywood's Beso Restaurant. The 20-year-old Heroes hottie supported The Whaleman Foundation, which promotes research and conservation for dolphins and whales and their ocean habitat.

Hayden also sported beautiful earrings and cuffs by Joan Hornig Jewelry - the branch cuff she's wearing was donated to a live auction to benefit the Whaleman Foundation later that evening!