Lifestyle Food Restaurants Go Inside the Most A-List Dinner of the Year to See J.Lo, Oprah, Gwyneth and More Doing Quiet Luxury Right Italian designer Brunello Cucinelli held an intimate, star-studded dinner at the Chateau Marmont on Oct. 19, and what felt like the entire A-list was in attendance By Stephanie Sengwe Updated on October 20, 2023 04:40PM EDT Close Jennifer Lopez, Quinta Brunson and Demi Moore at the Brunello Cucinelli dinner in L.A. Photo: BFA.com The stars were out and shining brighter than ever at a glamorous Brunello Cucinelli event held Oct. 19 in Los Angeles. The Italian fashion designer, along with his family, invited some A-list guests for an evening of cocktails, mingling and an intimate dinner. The event, aptly titled "Una Serata Italiana" or "An Italian Evening," took place at the Chateau Marmont in L.A. "It was a very special evening. Warm, easy and with a real family vibe," a source close to the brand told PEOPLE. "People came out because they love Brunello as a designer and person. They see what he does for his community and they feel a special connection to him and his work." From Gwyneth Paltrow and Oprah Winfrey to Jon Hamm, see which A-listers were present and perfectly dressed at the sparkly soirée. 01 of 15 Star Sighting Jennifer Lopez and Brunello Cucinelli. Marc Patrick/BFA.com Jennifer Lopez stunned in black and white while greeting Cucinelli. Her husband Ben Affleck was also there, looking "relaxed," a source told PEOPLE. "He seemed to be having fun. They both love the brand and shop there and know Brunello personally, and were happy to support him." 02 of 15 Terrific Trio Brad Falchuk, Gwyneth Paltrow and Brunello Cucinelli. BFA.com Gwyneth Paltrow and husband Brad Falchuk also mingled with Cucinelli. 03 of 15 Black Excellence Quinta Brunson, Oprah Winfrey and Colman Domingo. BFA.com Quinta Brunson, Oprah Winfrey and Colman Domingo showed off their pearly whites while hanging out at the posh event. 04 of 15 Getting Comfortable Patrick Dempsey. BFA.com Patrick Dempsey looked oh-so-comfortable as he sat back on a patterned couch during the party. 05 of 15 Silver Foxing Chris Pine and Brunello Cucinelli. BFA.com A dapper Chris Pine posed with Cucinelli, who hosted the fabulous night. 06 of 15 Director in Charge Ava DuVernay. BFA.com Ava DuVernay looked regal in her champagne-colored dress and matching shoes. 07 of 15 Doggie Days Kathryn Hahn with Demi Moore. BFA.com Kathryn Hahn and Demi Moore smiled for the camera as the latter's pooch — named Pilaf — sat cozy in her pouch. 08 of 15 Make It a Date Jon Hamm and Anna Osceola. BFA.com It was date night for Jon Hamm and wife, Anna Osceola, who just tied the knot in June. 09 of 15 Yes, Chef! Jeremy Allen White. BFA.com Jeremy Allen White's bright blue eyes were on full display as he donned a navy suit. 10 of 15 Star in Stripes James Marsden. BFA.com James Marsden jazzed up the dress code with a pinstriped ensemble. 11 of 15 Golden Man Henry Golding. BFA.com Also rocking pinstripes was Henry Golding, who opted for tailored gray suit for the evening. 12 of 15 Guest with the Most Jay Ellis. BFA.com Jay Ellis made for an engaged guest as he was pictured deep in conversation. 13 of 15 Simple Elegance Mandy Moore. BFA.com Mandy Moore attended the event decked in all-black. 14 of 15 Young Hollywood Ava Phillippe. BFA Similarly dressed was Ava Phillippe, who showed off her killer abs. 15 of 15 Going Rogue Ashley Park. BFA Ashley Park opted for a long, shimmering denim gown for the occasion.