OSLO, NORWAY - JANUARY 17: Princess Martha Louise of Norway and husband Ari Behn, Prince Sverre Magnus of Norway, Emma Tallulah Behn, Queen Sonja of Norway, Princess Ingrid Alexandra of Norway, Guest, King Harald V of Norway, Crown Princess Mette-Marit of Norway, Leah Isadora Behn and Crown Prince Haakon of Norway are seen outside the Royal Palace while celebrating the 25th anniversary of King Harald V and Queen Sonja of Norway as monarchs on January 17, 2016 in Oslo, Norway. (Photo by Ragnar Singsaas/WireImage)