Bilson, best known for playing Summer in hit series The O.C., wowed onlookers in a cobalt blue mini dress by Oscar de la Renta, covered with oriental floral embroidery and featuring a sweet mini-cape at the back. Cute!
The super-short frock, elegantly accessorised with a pair of sexy, pointed black stilettos and a simple black clutch bag, showed off petite Rachel's amazingly toned legs and enviable all-over bronze glow.
The brunette starlet wore her long hair in a half-up, half-down style, with braided sections on either side. She accentuated her enormous chocolate brown eyes with lashes to die for and winged black eyeliner. Candy pink blusher and a pink pout completed her 60s-inspired make-up look.
She was also rocking a black manicure to match her clutch bag - top marks for attention to detail!
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