Rihanna, Sofia Vergara
Credit: AKM-GSI; Jesse Grant/WireImage

The ladies of the U.S. swim team aren't the only ones who can work a one-piece! Our favorite celebrities love the look too, and it's easy to see why—as Rihanna and Sofia Vergara prove, the style is sexy without baring it all! Click through to see more celebrities channeling the Olympic spirit in sporty swimwear, and catch the U.S. Swim Team competing in London on NBC starting this Saturday at 10am/ET.