KUALA LUMPUR, MALAYSIA - SEPTEMBER 14: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge sign a visitors book during a visit to Assyakirin Mosque on day 4 of Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge's Diamond Jubilee Tour of the Far East on September 14, 2012 in Kuala Lumpur, Malaysia. (Photo by Tim Rooke - Pool/Getty Images)