(Getty) Duchess of Cambridge Kate Middleton at the National Portrait Gallery in London.
She wore a cerulean blue Stella McCartney short-sleeve sheath—the dress is super-flattering because of its high-waisted tailoring and subtle darts and pleating on the bodice—paired with pointy black Prada pumps.
The Duchess' interest in art is not merely for public show—she studied art history as an undergrad at St. Andrew's University, where she met Prince William. She's even featured in the National Portrait Gallery's Olympics exhibition! According to the Daily Mail, Kate appears in a black-and-white photograph taken at at Great Britain hockey event earlier this year.