King Willem-Alexander and Queen Maxima Of The Netherlands Attend Final Royal Concertgebouw Orchestra Concert Mariss Jansons [Getty Images]

AMSTERDAM, NETHERLANDS - MARCH 20: Queen Maxima of The Netherlands and King Willem-Alexander of The Netherlands arrive to attend the last concert by conductor Mariss Jansons at the Royal Concertgebouw Orchestra on March 20, 2015 in Amsterdam, The Netherlands. (Photo by Michel Porro/WireImage)

WireImage Michel Porro