How hot is Michelle Jenneke? The dark-haired Australian hurdler needed only a few seconds of viral video to turn into an international phenomenon at the 2012 Summer Olympics in London. Prior to the Olympics, a friend posted a video of the jiggling Jenneke at the 100 meter hurdles at a prior meet. More than 19 million views later, Jenneke had upstaged the other hurdlers at the Olympics.

Jenneke's viral feat landed her in the pages of the just-published 2013 Sports Illustrated Swimsuit Issue. Meanwhile, guys across the world will continue to watch YouTube for her next training video.

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