Let's make this birthday one to remember.

39 years old (Born on November 25, 1985)

Happy Birthday, Marcus Hellner! You're the only guy we know who can celebrate by skiing 30 kilometers faster than most of us can unwrap a birthday gift. Your double Olympic gold in Vancouver 2010—winning both the grueling 30 km pursuit and anchoring Sweden's unstoppable relay team—is still legendary.

And let's not forget your repeat golden glory at Sochi in 2014, where you once again led Sweden to victory in the thrilling 4x10 km relay. May your skis always glide smoothly, your cake slices be as generous as your medal count, and may no one ever challenge you to a snowball fight!