Country singer MIRANDA LAMBERT is the latest star to don a 'milk moustache' for America's iconic Got Milk? campaign.

The House That Built Me hitmaker has joined the likes of Jennifer Hudson, Hugh Jackman and Heidi Klum by shooting her own advertisement for the American Dairy Council.

The image, which shows Lambert posing with a guitar and a white mustache on her top lip, encourages consumers to add more milk to their diet.

And Lambert was thrilled to support the cause, telling CountryWeekly.com, "I've seen the milk mustache campaign forever. It's cool to join something that's very natural. It joins all kinds of genres together, and all kinds of entertainers together."