COPENHAGEN, DENMARK - MARCH 28: Crown Prince Frederik and Crown Princess Mary during arrival to the to the State Dinner on the occasion of the visiting Belgian King and Queen at Christiansborg on March 28, 2017 in Copenhagen, Denmark. The royal Belgian couple will be on a state visit from March 28 till March 30. (Photo by Ole Jensen - Corbis/Corbis via Getty Images)
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COPENHAGEN, DENMARK - MARCH 28: Crown Prince Frederik and Crown Princess Mary during arrival to the to the State Dinner on the occasion of the visiting Belgian King and Queen at Christiansborg on March 28, 2017 in Copenhagen, Denmark. The royal Belgian couple will be on a state visit from March 28 till March 30. (Photo by Ole Jensen - Corbis/Corbis via Getty Images)
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Corbis Entertainment Ole Jensen - Corbis

COPENHAGEN, DENMARK - MARCH 28: The royal Danish and royal Belgian family stands during the national anthem at the State Dinner at Christiansborg on March 28, 2017 in Copenhagen, Denmark. The royal Belgian couple will be on a state visit from March 28 till March 30. (Photo by Ole Jensen - Corbis/Corbis via Getty Images)
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Corbis Entertainment Ole Jensen

COPENHAGEN, DENMARK - MARCH 28: The royal Danish and royal Belgian family during the State Dinner at Christiansborg on March 28, 2017 in Copenhagen, Denmark. The royal Belgian couple will be on a state visit from March 28 till March 30. (Photo by Ole Jensen - Corbis/Corbis via Getty Images)
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Corbis Entertainment Ole Jensen - Corbis

COPENHAGEN, DENMARK - MARCH 28: The royal Danish and royal Belgian family during the State Dinner at Christiansborg on March 28, 2017 in Copenhagen, Denmark. The royal Belgian couple will be on a state visit from March 28 till March 30. (Photo by Ole Jensen - Corbis/Corbis via Getty Images)
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Corbis Entertainment Ole Jensen - Corbis