OSLO, NORWAY - MAY 10: Crown Prince Pavlos and Crown Princess Marie Chantal Greece 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)
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OSLO, NORWAY - MAY 10: Crown Prince Pavlos and Crown Princess Marie Chantal of Greece are 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)
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OSLO, NORWAY - MAY 10: Crown Prince Pavlos of Greece and Princess Marie-Chantal, Greece arrives 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 Nigel Waldron/ Getty Images)
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Getty Images Entertainment Nigel Waldron