Olivia Wilde, Dianna Agron
Credit: John Shearer/WireImage

Olivia Wilde (in a Schumacher coat) and Dianna Agron joined Chloe Moretz and Michelle Monaghan at L.A.'s legendary Chateau Marmont to celebrate the CFDA Vogue Fashion Fund finalists announcement. "Fashion fun makes a girl's head spin," Agron tweeted. "This girl at least." Click through to see Kate Bosworth, Amanda Seyfried and more stars at last night's hottest parties!