Michelle Obama, Hannah Montana fight US child obesity

WASHINGTON � First Lady Michelle Obama on Tuesday harnessed iconic media groups and stars as she launched an ambitious program to end the epidemic of childhood obesity, which affects one in three US children.

"We're working with the Walt Disney Company, NBC Universal and Viacom to launch a nationwide public awareness campaign, educating parents and children about how to fight childhood obesity," Obama said at the launch of the "Let's Move" campaign.

The first lady described the problem of obese American youth as "one of the most serious threats to the future of our children."

"Let's Move will rally our nation to achieve a single, ambitious goal: solving the problem of childhood obesity in a generation," she said at the White House.