The man who announced to the world the new King of the Netherlands holds a position in New Jersey.

Robbert Dijkgraaf, the director of the Institute for Advanced Study in Princeton, proclaimed today in front of thousands "His Royal Highness King Willem-Alexander is inaugurated! Long live the King, Long live the King, Long live the King." 

Willem-Alexander is Netherlands' first king since 1890 as his mother, Queen Beatrix, abdicated after a 33-year reign.

Dijkgraaf has held prominent positions in the Netherlands. He served as president of the Royal Netherlands Academy of Arts and Sciences and Distinguished University Professor of Mathematical Physics at the University of Amsterdam. He took over as director of the Institute for Advanced Study on July 1, 2012 and now lives in Princeton. He is regarded as one of the world's leading mathematical physicists, and his work has had a major impact on the development of string theory and quantum field theory