Belgian Royal Family Attends Christmas Concert At Royal Palace In Brussels [Getty Images]

BRUSSELS, BELGIUM - DECEMBER 21: (L-R) Prince Gabriel, Queen Mathilde of Belgium, Prince Emmanuel, King Philip of Belgium, Princess Eleonore, Princess Elisabeth, Princes Astrid and Prince Lorenz attend the Christmas Concert at the Royal Palace on December 21, 2016 in Brussels, Belgium. (Photo by Olivier Matthys/Getty Images)

Getty Images Entertainment Olivier Matthys