In this handout image supplied by St James's Palace Prince William Duke of Cambridge and Catherine Duchess of Cambridge pose for the official tour...
{"Image ImageDescription": "LONDON, UNITED KINGDOM - JUNE 3:  (EDITORIAL USE ONLY) In this handout image supplied by St James's Palace, Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge pose for the official tour portrait for their trip to Canada and California in the Garden's of Clarence House on June 3,  2011 in London. England. This image has been released on October 26, 2011 to coincide with the Royal couple's visit to UNICEF next week in Copenhagen.  (Photo by Chris Jackson/Getty Images for St James's Palace)", "Image Copyright": "2011 St James's Palace"}