Super brave super model, Petra Nemcova, who survived 2004’s Indian Ocean Tsunami, is opening her heart to support a cause, her own cause!

The Czech-born cutie celebrated her 29th birthday at Santo’s Party House in downtown NYC. Celebrity-attendees included Mary-Kate Olsen, Gossip Girl’s devilish Ed Westwick, Zoe Kravitz, Erika Christensen and Danny Masterson. What was the plus side of the party? In addition to The Filthy Youth’s performance, with Westwick as front man, the party supported the Happy Hearts Fund, Petra’s own charity.

Petra founded the Happy Hearts Fund in 2005, which aids children who have suffered loss or hardship as a result of natural, economic, or health-related disasters.

“Even before the tsunami, my goal in life always has been to help people,” said Petra. “Especially children — and just the tsunami gave me more opportunities to help.”

Super model with super powers—no wonder she’s a survivor.

Model Petra Nemcova is perhaps most famous for surviving the Asian tsunami in 2004. A close second: for dating James Blunt. CGG thinks we should replace No. 2 with her philanthropic efforts, since she's got the biggest heart.

Here's proof: With her charity, Happy Hearts Fund, the newly blond (but just as beautiful) model is supplying underprivileged kids with computers. During her recent trip to Haiti, Petra kept a diary and shared it with Marie Claire magazine.

Here are some excerpts from her diary:

Before I visited Haiti, I'd heard a lot of bad things about it. "Oh, there's no hope for Haiti," people said. "Forget about it." They couldn't have been more wrong.

True, the country is the poorest nation in the Western Hemisphere, and people often have to eat mud cakes - yes, actual cakes made of mud - to fill their stomachs.And I'd heard about the sprawling slum called Cite Soleil, where for years people lived in fear of getting machine-gunned down by gangs.

But the country has come a long way, thanks in part to a U.N. peacekeeping force, and the Haiti I saw was a beautiful place filled with hope. I traveled to the capital city, Port-au-Prince, with Haiti's native son, singer Wyclef Jean, and we worked together to bring computers to a school near his hometown. For the past few years, I've been helping to build computer labs around the world through my organization, the Happy Hearts Fund, which I started up after the tsunami in 2004.

The kids in Cite Soleil asked, "Are you Shakira?" Actually, a lot of people asked me that, which I thought was funny. I'm the worst singer on the planet.

Malnutrition is widespread in Haiti; every hour, a child under the age of 5 dies. We gave a T-shirt to a little boy who had no clothes, and then all the kids wanted T-shirts. Just a small thing like that completely made their day.

Petra was not nearly as famous before the tsunami and, subsequently, her numerous acts of generosity. Guess that makes her a Good Person Gone Celeb, rather than a Celeb Gone Good, huh? Whatev. Just keep up the "good work", Petra!

Bar Refaeli, international supermodel and girlfriend to environmental activist Leonardo DiCaprio, attended the Somaly Mam Benefit in NYC last night to raise global awareness about human trafficking. Supermodel Petra Nemcova attended the event, along with Somaly Mam, a former child sex slave who founded the Somaly Mam Foundation.

Photo from Just Jared

At the benefit, The Somaly Mam Foundation featured the premiere of the movie Holly. The film tells the story about a young girl caught in the web of the sex slave trade in Cambodia and the man who tries to save her. Holly was shot on location in Cambodia, including many scenes in actual brothels in the notorious red light district of Phnom Penh. source

The Somaly Mam Foundation helps young girls come out of the human trafficking scene by offering food, shelter, and education as well as crisis counseling.

According to the foundation's website, over one million girls are trafficked per year in an industry that rakes in over $12 billion a year.

I wonder if Leo's do-gooding efforts are rubbing off on Bar, or maybe its the other way around. Either way, they are making waves and we love it! Keep it up!