King Willem-Alexander and Queen Maxima Of The Netherlands Attend Freedom Concert in Amsterdam [Getty Images]

AMSTERDAM, NETHERLANDS - MAY 05: King Willem-Alexander of The Netherlands, Queen Maxima of The Netherlands and Princess Beatrix of The Netherlands wave to the public from a boat after the Freedom Concert on May 5, 2014 in Amsterdam, Netherlands. (Photo by Michel Porro/WireImage)

WireImage Michel Porro