Belgium's Crown Prince Philippe and Princess Mathilde smile with Japan's Crown Prince Naruhito (L) upon arriving at Akasaka Palace in Tokyo on June 11, 2012. Prince Philippe is here on a week-long visit. AFP PHOTO / POOL (Photo credit should read KOJI SASAHARA/AFP/GettyImages)

Belgium's Crown Prince Philippe and Princess Mathilde smile with Japan's Crown Prince Naruhito (L) upon arriving at Akasaka Palace in Tokyo on June 11, 2012. Prince Philippe is here on a week-long visit.  AFP PHOTO / POOL        (Photo credit should read KOJI SASAHARA/AFP/GettyImages)