WATCH: Olympian Ledecky swims while balancing a glass of milk on her head

American swimmer Katie Ledecky has perhaps achieved it all in her sport. The 23-year-old has clinched a whopping five Olympic gold medals and has 15 world championship gold medals to her name - the most in history for a female swimmer.

Ledekcy, who holds the world record in the women's 400m and 800m freestyle, however, claims her most recent swim is perhaps one of her career's best.

Taking part in a promotional campaign for the Milk Processor Education Program called the #gotmilkchallenge, Ledecky swims the length of a pool with a glass of chocolate milk balanced on her head. And she doesn't spill a single drop!

Needless to say, the video went viral soon after and earned her praise from netizens across the globe.

Part of the same campaign, former US Open champion Sloane Stephens also put up a video of herself hitting tennis balls while holding a glass of milk.