Stars’ Good Deeds!

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Angelina Jolie

"We need these kids...to rebuild their country, to stabilize their country and eventually lead their country," Jolie -- who visited Iraq while pregnant with Knox and Viv -- said during a panel discussion titled "Iraq, Education, and Children of Conflict" at a Council on Foreign Relations forum.

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Jennifer Aniston

Aniston has participated in the children's hospital annual fundraising drive, "Thanks and Giving," every year since its 2004 inception.

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Eva Longoria

"My old sister Elizabeth is mentally disabled. She is my hero," Longoria tells Us of her motivation to begin Eva's Heroes, an after-school program for special needs children in San Antonio.

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Mariska Hargitay

"When I started on [Law & Order: SVU], people asked me how I dealt with all the horrible subject matter. I deal with it by doing something about it," she says. Her foundation supports survivors of sexual assault, domestic violence and child abuse.

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Michael J. Fox

"I set out to assemble a team of people smarter than me -- that was distressingly easy," jokes the star, who was diagnosed with the Parkinson's Disease in 1991. The Michael J. Fox Foundation for Parkinson's Research has raised more than $140 million for research into new therapies.

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Sarah Michelle Gellar

CARE fights poverty in 65 countries through education, health and social reform. As an ambassador for two years, Gellar raises funds and tours schools and health programs from Tanzania to Guatemala to raise awareness. "It's one of the best things I've ever done," she tells Us.

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Anna Kournikova

The tennis ace joined forces with the United Service Organizations to provide morale boosts to U.S. troops and their children. "These people keep us safe and protect the lives we are privileged to have back home," she tells Us.

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Chris Rock

Rock works with the Salvation Army to fix up community centers in Bushwick, Brooklyn. "I grew up here. There aren't too many places dedicated to good. So let's help these people out," Rock (with his wife, Malaak, and daughter Zahra) tells Us.

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Hilary Duff

Blessingsinabackpack.com gives kids who get federally funded meals during the week backpacks of food to take home for the weekend. "You can have the best teachers and curriculum, but if kids aren't eating they will not concentrate and perform," Duff - who has bought meals for two years - tells Us.

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Salma Hayek

The actress has been raising money for Unicefusa.org to eradicate maternal and newborn tetanus by 2012. "The thought of losing a child to a disease seems unbearable, especially when it is within our power to prevent it," says the mom of Valentina.

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Shawn Johnson

The Olympic gymnast draws inspiration from her grandmother, who beat breast and lung cancer 10 years ago. "Bringing awareness to women's and children's cancers is very important to me," she tells Us of Cancer.net. "I hope I encourage patients and families to never give up."

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Debbie Phelps

Phelps helps son Michael work with his ADHD - and also inspires parents of other kids on her ADHD Moms Facebook Web page. "As I look at Michael, not only am I passionate about this, but [as] a school principal, I see a lot of children who have been diagnosed with ADHD," she tells Us.