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The last time this many J. Mendel dresses were in one place, it was the Emmys! Only the designer of the label himself—Gilles Mendel, shown with partner Kylie Case—could dress so many stars for one night again, this time for the Third Annual Autumn Party hosted by the Philanthropic Society Los Angeles, held at the London Hotel Rooftop in Los Angeles. “Any actress, and any beautiful woman, is part of my dream to dress,” Mendel told InStyle.com of his Hollywood following, which included party guests Brittany Snow, Sophia Bush, Jamie Lynn-Sigler, New Girl’s Hannah Simone, and Garcelle Beauvais. “I love when you get into one of his dresses, you really feel like you’re a woman,” Snow told InStyle.com before posing for photos in a silver strapless cocktail look by the designer with gal pal Sophia Bush. “The way the clothes are made make you feel really classy and put together.” The two stuck side-by-side all night, sipping Champagne along with the rest of the 400 attendees in candlelit cabanas overlooking the Los Angeles skyline—a beautiful setting to watch a fashion show of J. Mendel’s new resort collection, which also took place at the soiree. The evening benefited the Children’s Institute, Inc., a non-profit dedicated to child abuse and neglect treatment and prevention. Click through the gallery to see more stars at the J. Mendel party, and more photos from this week’s hottest events.

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• J. Mendel at the Emmys: See the Stars!
• How Gilles Customized His Suit for Taylor Swift
• J. Mendel Wins Award from Michelle Obama

— Carita Rizzo