Nelly 'Got Milk'

Nelly will become the first rapper to participate

in the "Got Milk" Milk Mustache campaign, which in the past has featured

such celebrities as Tyra Banks, Venus and Serena Williams, MTV host Carson Daly

and others.

Nelly's ad will premiere in the December 6 issue

of Rolling Stone magazine. His advertising copy will appear as a tattoo on his

chest and will read "Nine essential nutrients, what active bodies need.

got milk?" - illustrating that good nutrition, including drinking milk,

is engraved in his hip-hop lifestyle.

"If you're always on the go like me, a glass

of milk helps boost you up and helps you build the bones you need ... strong

bones," Nelly told in a statement.

The National Academy of Sciences recommends

teenagers get at least 1,300 milligrams of calcium per day, the equivalent of

at least four 8-ounce glasses of milk.