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"Hashtag: Don't Go Home"

Up All Night With Gilles Mendel, the Proenza Boys, and The Last Magazine

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Karlie Kloss, Gilles Mendel, and Joan Smalls   
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Joan Smalls' favorite track on Frank Ocean's Channel Orange is "Forrest Gump." Karlie Kloss likes "Thinkin Bout You" best. They were the two songs that Ocean performed at J. Mendel's party last night, perched on a stool literally inches from the girls. The models were in heaven. So was everyone else with the good fortune to be on hand for a surprise performance by the man with the album of the year. So how did it happen? Gilles Mendel knew Ocean was in town for SNL so he asked him. Simple. The designer was a hands-in-the-air-like-he-just-don't-care party monster with his gorgeous gazelle of a girlfriend, Kylie Case, who gives La Kloss a run for her money in the tall-gal sweepstakes. Five generations of Mendels built the family business in Paris. Then Gilles flipped operations to New York. Now he's on a mission to reintroduce J. Mendel to the French. "It's a bizarre, exciting moment," he enthused. I think he was talking about his business, but his words worked just as well for his party.

When designers Jack McCollough and Lazaro Hernandez finally made their way to Irving Place for their own post-show shindig, it was hugs and high-fives all around. "We're ready to blow off a little steam," McCollough told Style.com, trying on one of the black baseball caps with cat embroidery that everyone received as a party favor. "We've been in the office a lot, so now we're going to have our belated summer." Boys, those extra hours paid off. "Every item was special, but I loved it as a collective," Kate Bosworth said. "It felt very edited and precise."

The Proenza bash started winding down around 1 a.m., but late nighters were still going strong at Magnus Berger and Tenzin Wild's The Last Magazine bash at the new Pink Elephant. Watching Phillip Lim, Prabal Gurung, and Richard Chai on the dance floor, off-duty DJ Chelsea Leyland said, "My phrase for the night: Hashtag don't go home."

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