01/25/2012 08:29 am ET Updated Jan 25, 2012

Fat Joe And Other Celebs Who Lost The Weight And Are Paying It Forward

Rapper Fat Joe has lost over 100 pounds in the past year, scaling back from his all-time high of 460, according to a recent article in the New York Daily News. But he isn't just concerned with his own health -- he sees his extreme weight as a symptom of social problems in the community where he comes from.

"I was just a kid myself, dealing with childhood obesity," the star, whose real name is Joseph Cartagena, told the Daily News. Now he's working with Newark's Mayor Cory Booker to create anti-obesity programming for kids in low-income neighborhoods throughout the city. But he isn't the only one who's lost the weight and now wants to pay it forward. Other stars have dropped significant poundage and hope to inspire others to do the same: