Lindsey Vonn Abs

Olympic ski champ Lindsey Vonn has such killer abs that they became the topic of conversation when she appeared on Conan O'Brien's show last summer.

Vonn is out for the rest of this World Cup season after fracturing her left knee two weeks ago, but she is still putting in the time at the gym to maintain those abs of steel. Upside-down situps, anyone? Check out her Instragram video:

Getting creative in the gym today. Working hard but still having fun! @redbull more on my snapchat!

A video posted by Lindsey Vonn (@lindseyvonn) on

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