• MELLOW YELLOW photo | Kate Middleton

Credit: John Stillwell/Getty

Published: Wednesday May 22, 2013 06:00 AM EDT



Looking radiant in an Emilia Wickstead coatdress and bow-topped Jane Corbett topper, the Duchess of Cambridge and her bump, joined by Prince Charles and Camilla, Duchess of Cornwall, surprise visitors for tea at the Queen's Garden Party at London's Buckingham Palace on Wednesday.