Dutch Queen Maxima holds a ball during King's Day or Koningsdag celebrations in Tilburg on April 27, 2017. Dutch King Willem Alexander is celebrating his 50th birthday which happens to fall on King's Day or Koningsdag formally known as Queen' Day until King Willem-Alexander ascended to the throne in 2013 taking the reign from his mother. / AFP PHOTO / ANP / Koen van Weel / Netherlands OUT (Photo credit should read KOEN VAN WEEL/AFP/Getty Images)
