Beauty Insider: Metropolitan Museum Costume Institute Gala

From Ashley Greene's chic chignon to Gisele Bündchen's glamorous makeup, the experts who created stars' looks on fashion's biggest night share their inspiration and tips

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ZOE SALDANA

"Zoe's dress had a vibrant spring color that was so simple and elegant," says Kérastase Paris celebrity hairstylist Mara Roszak, whose loose, piece-y look balanced the gown. "I wanted the hair to feel fresh with soft messy waves."