Got Milk Amazing Feat Of Athleticism?!?!
Katie Ledecky just swam the entire length of a pool while balancing a glass of milk on her head ... and she didn't spill a single drop the whole time!!!
The 5-time Olympic gold medalist posted the insane swim on her social media page as part of an ad for milk ... and the footage is straight-up mind blowing.
Ledecky, sporting snorkel gear, hopped into the pool and put the glass of chocolate goodness right on the back of her head.
What happened next was amazing .