Rachel Zoe went on a weekend art-shopping spree in the Hamptons. After hosting a booth at Super Saturday in Water Mill, the skinny stylist was the big spender at the Calvin Klein/Vanity Fair-sponsored Acria (AIDS Community Research Initiative of America) event at Steven Klein‘s Bridgehampton home. While Klein, Daphne Guinness, Nacho Figueras, Darren Star and Francisco Costa danced, Zoe was overheard saying she’d bought works by Jeff Koons and Ross Bleckner.