Miranda Lambert Sports 'Got Milk?' Mustache

Miranda Lambert's 'got milk?' ad --

Miranda Lambert has joined the ranks of the milk mustache alumni by posing for a new ad for the "got milk?" campaign.

Donning her cowboy boots and denim, the country singer posed in the ad with her milk mustache, a glass of the calcium-rich beverage and her guitar.

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The ad was unveiled at the Country Music Association headquarters in Nashville on Wednesday.

Click HERE to see Miranda's ad and more stars who've donned the milk mustache!

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