Celebrities came out in force over the weekend to celebrate the Natural Resources Defence Council’s 20th Anniversary Gala Celebration. The event was hosted by Julia Louis-Dreyfus and took place at the Beverly Wilshire. Hitting the red carpet were Leonardo DiCaprio, Cameron Diaz, Amy Smart, Chelsea Handler, Heather Graham, Jon Hamm, and many more. Check out photos from the carpet below!

Jon Hamm, Edie Falco, Keri Russell, Paul Rudd, Jeremy Sisto, Patrick Duffy, David Schwimmer, Rosanna Arquette, Ally Sheedy, Nathan Fillion, Kevin Smith, John Slattery, and Lili Taylor have all signed on to auction off lunch dates for The Adrienne Shelly Foundation — a non-profit that supports the artistic achievements of female actors, writers and directors through a series of scholarships and grants.

Currently, actor-director Kevin Smith is leading the bidding — most likely because every aspiring screenwriter is throwing their credit card at the auction in an attempt to get some time with the guy. That, and he’s pretty damn cool. Right behind Smith are Hamm, Fillion, and Rudd — who will meet you in either LA or NYC depending on scheduling; you’ll just need to cover travel and hotel expenses. The Foundation will cover lunch. Oh yea, you’ll also need to have a background check — so any stalkers are SOL.

Still hungry? Have a look at all of the auctions items here! Bidding ends on the 16th.

While it isn’t the most “green” activity in the world, race car driving is nonetheless being put to some good this coming April thanks to Toyota and some celebrities. The Toyota Pro/Celebrity Race, part of the 35th annual Toyota Grand Prix of Long Beach, will include 20 famous faces competing to win for charity. Some of the more recognizable names participating include Adrien Brody, Luke Wilson, Keanu Reeves, Jon Hamm, Alex Trebek, and Carlos Mencia. Toyota will donate $5K in the name of each celebrity to “Racing for Kids“, which helps fund the healthcare needs of children. An additional $5K will be given to the winner’s charity of choice.

“With all the high-caliber Hollywood stars in the field, this year’s race is sure to be a blockbuster,” said Les Unger, Toyota’s national motorsports manager. “The Toyota Pro/Celebrity Race is win-win for everyone, because it gives fans a chance to see their favorite performers in action-packed real racing while offering the celebrities an opportunity to ‘give back’ to children in need.”

The race kicks off on April 18th.

–Mad Men’s Jon Hamm in a new interview with the UK Telegraph. Check out our coverage of the upcoming eco-flick The Day The Earth Stood Still here.