Norwegian royals Attend The Saint Olav Festival 2015 [Getty Images]

STIKLESTAD, NORWAY - JULY 24: Crown Princess Mette-Marit of Norway and Crown Prince Haakon of Norway attend The Saint Olav Festival on July 24, 2015 in Stiklestad, Norway. (Photo by Ragnar Singsaas/Getty Images)

Getty Images Entertainment Ragnar Singsaas