ADELAIDE, AUSTRALIA - APRIL 23:  Catherine, Duchess of Cambridge speak to youth at the community centre of The Northern Sound System at Elizabeth during a tour of the facilities on April 23, 2014 in Adelaide, 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 Morne de Klerk - Pool/Getty Images)