Photos: Will and Kate set off on royal tour
Singapore Britain Royals
Prince William, the Duke of Cambridge, center, is accompanied by Singapore's President Tony Tan, as he inspects an honor guard during the welcome ceremony at the Istana, or Presidential Palace, on Tuesday Sept. 11, 2012 in Singapore. The Duke and Duchess of Cambridge started an official three-day trip to Singapore Tuesday. (AP Photo/Wong Maye-E)