Mary-Kate Olsen and her boyfriend, Olivier Sarkozy, shared the look of love at the annual Hampton Classic Horse Show in Bridgehampton on Saturday. They were joined by a star-studded crowd that included Sofia Vergara, Matt Lauer, Jon Bon Jovi, Jerry Seinfeld, and a Champagne-sipping Christie Brinkley to bid Summer farewell over the Labor Day weekend. Mary-Kate has been spending much of her time in the Hamptons recently, and she and Olivier popped up at a Summer bash in honor of the Apollo Theater, which also brought Katie Holmes, Ellen DeGeneres, and Jamie Foxx to East Hampton last weekend. The Long Island beach towns have become a popular vacation destination for the stars — see all the stars to hit the Hamptons this Summer!
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