The annual Global Green pre-Oscar party got a streak of “Avatar” blue on Wednesday, as best director nominee James Cameron and a host of other environmentally conscious celebs turned out to celebrate at the Avalon Hollywood.

Longtime green guy Leonardo DiCaprio made a guys night of the bash — which was full of vendors showcasing the latest in energy-conserving solutions –  rolling with pals Kevin Connolly and Lukas Haas.

Jessica Alba circulated around the music venue with husband Cash Warren. The couple bumped into stars including  Stephen Dorff, Scott Weiland, Mel B. and Barry Watson.  

On the main stage, brothers Joel and Benji Madden performed with acoustic guitars. Upstairs at attached venue Bardot, Cameron held court at a packed table with his wife Suzy Amis. Bardot managing partner Jason Scoppa chatted up guests while across the room Nicole Sherzinger sipped cocktails with “CSI: NY” actor Hill Harper.

Actor Dan Aykroyd was also in the house, taking prime stage view from Avalon owner John Lyons‘ office. 

– Matt Donnelly

Photo: Musicians Benji Madden, left, and Joel Madden of Good Charlotte with Jessica Alba and producer Cash Warren at Global Green USA’s pre-Oscar party on March 3, 2010 in Hollywood. Above right, Suzy Amis and James Cameron arrive at the Avalon bash.  Credits: Michael Buckner / Getty Images for Global Green, top; Frazer Harrison / Getty Images, right.

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