Who: Catherine, Duchess of Cambridge
Where: Visiting the Road to 2012: Aiming High exhibition at the National Portrait Gallery London, England
Why we like it: Catherine kept it simple and chic with this electric blue Stella McCartney crepe dress. She completed the event-appropriate look with an Olympic-themed necklace by Cartier and black satin Prada pumps.
Image: Will Alexander/WENN.com
