Angelina Jolie
She's done more charity than she has had movies, which makes her quite ambitious. Angelina is currently helping refugees as an ambassador to UNHCR, and she gives money to just about everyone except Jennifer Aniston. Check her out naked in "Gia." That's making the world a better place right there.
Hayden Panettiere
Her antics reportedly got her an arrest warrant from Japan: she jumped in the ocean to stop fisherman from killing dolphins, and you can bet that got her wet in many places. To make her an even hotter giving-goddess, she is auctioning off her clothes to support Save the Whales.
Jessica Alba
She raised $260,000 for disabled children at a screening of "Good Luck Chuck," although it's a fair guess she wasn't nude. That may change as she donates to "Clothes Off Our Back," another charity where celebrities donate their clothes (this time to support childrens' charities).
Natalie Portman
A beautiful stripper in "Closer," Natalie sweats in real life too. She trekked through a jungle in the Congo to film a documentary about endangered gorillas, one of which she named "Ahazaza." Just try screaming that aloud in bed. She also works for FINCA, helping give business loans to women in poor countries who otherwise would be forced to work as a much less hot version of her "Closer" role.
Petra Nemcova
This poor young model was stuck in a tree for eight hours during the 2004 tsunami in the Indian Ocean. As if she hadn't already made a tree happy and given everyone else plenty of wood, she created the charity "Happy Hearts" to support children who were victims of the tsunami.
