Stars from the fashion world, Hollywood, and the art scene came together in LA on Saturday night at the MOCA's Artist's Museum Happening. The evening was sponsored by Chanel Fine Jewelry, and the design house dressed starlets including Mila Kunis, as well as BFF and Baby costars Rachel Bilson and Kate Bosworth, and Kirsten Dunst for the event. Gwen Stefani also wore Chanel as she walked the carpet hand-in-hand with Gavin Rossdale. Rachel Zoe arrived fashionably late with her own husband, Rodger Berman, and sparked a new round of pregnancy rumors in a dress that appeared to show off a small baby bump. Her former co-worker, Brad Goreski, chatted on the way in, saying that since he and the superstylist have gone their separate ways, he's taking advantage of being his own boss by hitting the gym any time he wants. Stay tuned to today's PopSugar Rush for even more interviews and highlights from the soiree!

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Images include: Rachel Griffiths, Rachel Bilson, Rachel Zoe, Kate Bosworth, Malin Akerman, Balthazar Getty, Rodger Berman, Chloë Sevigny, Gwen Stefani, Gavin Rossdale, Brad Goreski, Jennifer Love Hewitt, Vera Wang, Priscilla Presley, Kirsten Dunst, Ginnifer Goodwin, Eric Dane, Rebecca Gayheart, Kristin Davis, Mila Kunis, Lori Loughlin, Rose McGowan, Patricia Arquette