TUVALU – SEPTEMBER 18: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge dance with the ladies at the Vaiku Falekaupule for an entertainment programme on September 18, 2012 in Tuvalu. Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge are on a Diamond Jubilee tour representing the Queen taking in Singapore, Malaysia, the Solomon Islands and Tuvalu. (Photo by Arthur Edwards – Pool/Getty Images)