Michelle Jenneke is one of the athletes that features in this year’s SI Swimsuit Issue. If you need a refresher, she’s the Australian hurdler that became a YouTube sensation for her pre-race warm-up dance before the 100-meter hurdles race at the 2012 World Junior Championships in Athletics in Barcelona. Well, that little bit catapulted her to an appearance on The Tonight Show and now she’s half-naked in Vegas posing for the cameras of Sports Illustrated. By the way, in case you’re wondering, Michelle is 19 years old, plenty of time to continue dancing pre-race for her hurdling career. Check out all the coverage and videos of the 2013 Sports Illustrated Swimsuit Issue!