Olivia Palermo attended the ballet in New York last night wearing a stunning, and refreshingly demure, Valentino gown. The high neckline and long sleeves are a welcome change to the revealing evening wear we have seen of late, inspiring us to try the less-is-more approach for our next cocktail outing. Paired with a tousled bun and soft, bronze makeup, the result is a romantic approach to spring dressing. Click through to channel her look.