The hot new accessory in Hollywood? Apparently it's abs. And if you've got 'em (which Selena Gomez, Diane Kruger and these other stars certainly do), there's no reason not to flaunt 'em in a short shirt. Now excuse us while we do 100 sit-ups...
Credit: Amy Graves/WireImage
Updated: Monday Mar 18, 2013 | 06:00 AM EDT By: Zoë Ruderman
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