Oscars 2009

Gearing up for Hollywood's biggest night, the stars assembled for the 6th annual Global Green USA pre-Oscar party. Leonardo DiCaprio, Rosario Dawson and Kate Walsh flocked to L.A. hot spot Avalon, where they rocked out to live performances by Sheryl Crow and Gavin Rossdale. "We're not just a tree-hugging group, we're the wave of the future," declared Global Green supporter Kate Bosworth (in a Loewe dress and jewelry by Chanel). "Now it's a central movement that's meant to inspire future generations."

—Andrea Simpson