1. Jonas Brothers Jonas Brothers

    Testified before Congress to promote diabetes research and continued support for Special Olympics. Kevin Jonas will appear on "Minute to Win It" for charity. Joe Jonas recorded single to raise money for Disney Worldwide Conservation Fund.

    Change for the Children Foundation »

    Jonas Brothers' Official Site »

  2. Lady Gaga Lady Gaga

    Offered VIP concert tickets to fans who helped the homeless, donated all proceeds from one concert to help Haiti, and teamed up with MAC AIDS Fund to raise money for AIDS awareness around world.

    Lady Gaga's Official Site »

    Lady Gaga's Fansite »

  3. Shakira Shakira

    Was awarded a medal by the U.N. and honored at Oxford for her charity work, went to Haiti to start building a school, and recorded a charity single to benefit victims of Chile's earthquake.

    Barefoot Foundation »

    Shakira's Official Site »

    Shakira's Fansite »

  4. Pete Wentz Pete Wentz

    Pete was named the national spokesman for the 2010 UNICEF Tap Project, which is devoted to providing clean and accessible water to millions of children around the world. As this year's National UNICEF Tap Project spokesman Pete will be tweeting, blogging and conducting national media interviews.

    Invisible Children »

    Pete's Fansite »

  5. Christina Aguilera Christina Aguilera

    Became global spokeswoman for World Hunger Relief, went to Guatemala to raise awareness about malnutrition, donated a Chrysler 300 to auction for Haiti earthquake relief and appeared on the Hope for Haiti telethon.

    World Hunger Relief, Inc. »

    Christina's Official Site »

    Christina's Fansite »

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