see more

Singapore's President Tony Tan Keng Yam (2nd-L) and his wife Mary Tan (L) are welcomed by Japanese Emperor Akihito (2nd-R) and Empress Michiko upon their arrival at the Imperial Palace in Tokyo on November 30, 2016. / AFP / POOL / Eugene Hoshiko (Photo credit should read EUGENE HOSHIKO/AFP/Getty Images)

Singapore's President Tony Tan Keng Yam (2nd-L) and his wife Mary Tan (L) are welcomed by Japanese Emperor Akihito (2nd-R) and Empress Michiko upon their arrival at the Imperial Palace in Tokyo on November 30, 2016.  / AFP / POOL / Eugene Hoshiko        (Photo credit should read EUGENE HOSHIKO/AFP/Getty Images)

see more

Dutch Queen Maxima (R) awards the 2016 Prins Bernhard Cultuurfonds (Prince Bernhard Culture Fund) to Peruvian-Dutch film director Heddy Honigmann during the awarding ceremony in Amsterdam, on December 2, 2016. 150,000 euros are awarded annually to persons or institutions for their involvement in culture, nature and science in The Netherlands. / AFP / ANP / Olaf KRAAK / Netherlands OUT (Photo credit should read OLAF KRAAK/AFP/Getty Images)

Dutch Queen Maxima (R) awards the 2016 Prins Bernhard Cultuurfonds (Prince Bernhard Culture Fund) to Peruvian-Dutch film director Heddy Honigmann during the awarding ceremony in Amsterdam, on December 2, 2016. 
150,000 euros are awarded annually to persons or institutions for their involvement in culture, nature and science in The Netherlands.  / AFP / ANP / Olaf KRAAK / Netherlands OUT        (Photo credit should read OLAF KRAAK/AFP/Getty Images)

see more

Monaco's Charlotte Casiraghi leaves the Longines Masters at the Paris Horse Show 2016 in Villepinte, north of Paris, on December 3, 2016. / AFP / GEOFFROY VAN DER HASSELT (Photo credit should read GEOFFROY VAN DER HASSELT/AFP/Getty Images)

Monaco's Charlotte Casiraghi leaves the Longines Masters at the Paris Horse Show 2016 in Villepinte, north of Paris, on December 3, 2016. / AFP / GEOFFROY VAN DER HASSELT        (Photo credit should read GEOFFROY VAN DER HASSELT/AFP/Getty Images)

see more

LONDON, ENGLAND - DECEMBER 01: Sarah Ferguson, Duchess of York, attends 'The Radical Eye' dinner and private view for the Elton John Aids Foundation in association with Bulgari on December 1, 2016 in London, England. (Photo by David M. Benett/Dave Benett/Getty Images)

LONDON, ENGLAND - DECEMBER 01:  Sarah Ferguson, Duchess of York, attends 'The Radical Eye' dinner and private view for the Elton John Aids Foundation in association with Bulgari on December 1, 2016 in London, England.  (Photo by David M. Benett/Dave Benett/Getty Images)