OSLO, NORWAY - MAY 10: King Harald and Queen Sonja of Norway arrive at the Opera House on the ocassion of the celebration of King Harald and Queen Sonja of Norway 80th birthdays on May 10, 2017 in Oslo, Norway. (Photo by Patrick van Katwijk/Getty Images)
OSLO, NORWAY - MAY 10: Crown Prince Haakon and Crown Princess Mette-Marit of Norway arrive at the Opera House on the ocassion of the celebration of King Harald and Queen Sonja of Norway 80th birthdays on May 10, 2017 in Oslo, Norway. (Photo by Patrick van Katwijk/Getty Images)
OSLO, NORWAY - MAY 10: Princess Martha Louise of Norway is seen arriving at the Opera House on the occasion of the celebration of King Harald and Queen Sonja of Norway 80th birthdays on May 10, 2017 in Oslo, Norway. (Photo by Rune Hellestad - Corbis/Corbis via Getty Images)
