The President Of The Republic Of Singapore Makes A State Visit To The UK [Getty Images]

LONDON, ENGLAND - OCTOBER 21: Prince William, Duke of Cambridge and Catherine Duchess of Cambridge attend a Ceremonial Welcome for the President of Singapore Tony Tan Keng Yam at Horse Guards Parade on October 21, 2014 in London, England. (Photo by Samir Hussein/WireImage)

WireImage Samir Hussein