CHRISTCHURCH, NEW ZEALAND - APRIL 14: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge pose with members of the Christchurch Cathedral choir during visit to the Transitional Cathedral on April 14, 2014 in Christchurch, New Zealand. The Duke and Duchess of Cambridge are on a three-week tour of Australia and New Zealand, the first official trip overseas with their son, Prince George of Cambridge.  (Photo by Martin Hunter/Getty Images)