Milk Mustache Celebrities

Serena Williams attributes her athletic achievements to an intense regimen that includes nutrient-packed milk.

"Before I hit the tennis court I make sure to milk my morning with a healthy breakfast," says Serena. "My favorite is a bowl of oatmeal and glass of milk to help give me sustaining energy for my workout."

Serena joined other stand-out athletes who have donned the famous 'stache including Mia Hamm, Kevin Garnett and Andy Roddick.