404119 02: (L to R) Belgian Crown Princess Mathilde and Prince Philippe greet Japanese Crown Princess Masako and Crown Prince Naruhito at the Tokyo International Airport in Tokyo, Japan. The two couples will go together to watch the World Cup match between their two countries June 4, 2002. (Photo by Koichi Kamoshida/Getty Images)

404119 02: (L to R) Belgian Crown Princess Mathilde and Prince Philippe greet Japanese Crown Princess Masako and Crown Prince Naruhito at the Tokyo International Airport in Tokyo, Japan. The two couples will go together to watch the World Cup match between their two countries June 4, 2002. (Photo by Koichi Kamoshida/Getty Images)