OSLO, NORWAY - MAY 10: King Carl Gustaf and Queen Silvia of Sweden 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 Princess Victoria and Prince Daniel of Sweden 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: Prince Carl Philip and Princess Sofia of Sweden 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)
