The ad, which the pop star posted online earlier this week, is simple: It features Simpson posing in a kitchen in a white tank top and black pants, holding a glass of milk and staring into the camera.

Football stars from Michael Strahan to Hakeem Nicks have appeared in the National Milk Mustache ‘got milk?’ Campaign print ads for the past 17 years. As the campaign continues to evolve, the ...

With no milk to wash it down, he loses a call-in radio contest, unable to speak. It kicked off the campaign with a boom, and played into the idea that you don't just want milk, you need it.

Indeed, almost anyone who grew up in the '90s remembers the ubiquitous milk-drinking ad campaign (funded by the California Milk Processor Board), which, in addition to various commercials ...