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

MARY-KATE OLSEN

"Wearing vintage Givenchy Haute Couture, she left looking like a Klimt painting," says Molly R. Stern, who used Nars Cosmetics to create Mary-Kate's look.