The 20-year-old American snowboarder won gold in the men’s snowboard slopestyle event at Sochi, and he’s had just as much success on social media. Kostenburg completed his run at the Winter Olympics during the game’s opening days and then had plenty of time to share more than a few candid moments with celebrities and fellow athletes. The games might be over, but Kostenburg’s following continues to grow, thanks to his easy charm and fantastic snowboarding pictures. —Eric Dodds