The Duke And Duchess Of Cambridge Tour Australia And New Zealand - Day 10 [Getty Images]

SYDNEY, AUSTRALIA - APRIL 16: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge greet the crowds of public outside Sydney Opera House on April 16, 2014 in Sydney, Australia. 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 Chris Jackson/Getty Images)

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