Harry Teeuwen started singing covers of popular bands from the seventies in a pop band at the age of 16. Later he studied classical singing at the Conservatory of Amsterdam with Kevin Smith and with Hans-Günther Grimm in Germany. After this he took lessons with David Wilson-Johnson and Peter Harrison.
Harry made his debut at Opera Zuid in L'étoile and sang with Opera Vlaanderen in Antwerp and Ghent. He sang solos in productions of the ZaterdagMatinee in Het Concertgebouw and in the performance of Faust by the Flemish Radio Orchestra. Harry also sang recitals in Japan and performed as a soloist at an opera concert in China. He has also taught singing lessons in Japan and China and participated in a study project at the Chinese University of Nanjing. With his singing lessons Harry follows the method of Frederick Husler.
With Dutch National Opera, Harry has sung solos in more than 25 operas, including Dialogues des Carmélites, Tristan und Isolde, Lohengrin, Iphigénie and Tauride and the Jubilee Concert of DNO.