Donato Sardella/WireImage

WHAT SHE WORE In L.A., Bilson styled a ruffled Vanessa Bruno blouse with the designer's black blazer and skirt; she finished the look with spiked Anita Ko studs and suede booties.

CELEBRITY: Rachel Bilson

DESIGNER: Vanessa Bruno

TREND: Black

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Rachel Bilson

Rachel Bilson in Vanessa Bruno