Heidi Klum's ‘Got Milk?' Ad

Heidi Klum has become the latest famous face to model a milk mustache.

Just in time for Halloween, the “Project Runway” host dressed up as a milkmaid (and was joined by a live cow) to promote the beverage.

[ VIEW THE PHOTOS: Heidi Klum ]

“Haute Cowture. Trick or treat? There’s no trick to it,” the ad reads. “The 9 essential nutrients in milk make it the perfect after-treat treat for your whole family. So this Halloween, dress up your costume with a look that’s always in style. Wunderbar!”

According to a release from a campaign rep, Heidi debuted the campaign at the Every Picture Tells a Story art gallery and bookstore in LA, where she hosted Halloween festivities and read stories to children.

[ VIEW THE PHOTOS: ‘Project Runway’ Season 5 ]

But while her ads will be everywhere, fans may have trouble finding the supermodel on TV as the fate of “Project Runway” hangs in the balance.