At a true-blue fashion party, you better expect some serious style. Barneys New York courted its West Coast fans at a dinner to honor Proenza Schouler last night in LA, and the crowd included the to-be-expected celebrities that love fashion. Rashida Jones brightened up her spotted Proenza Schouler dress with a serious statement necklace, while Kate Bosworth kept her longer black-and-white Proenza style simple, accented with ALDO pumps and a structured clutch, also from the label. Kirsten Dunst must have gotten the same subdued memo: she wore the brand, too, and picked all black, playing with proportions as she mixed a long top with shorts. If you were stepping out to dine with the City of Angels' most fashion friendly, which would you pick?