A native of New Zealand, Simon O’Neill is one of the finest helden-tenors on the international stage. He has frequently performed with the Metropolitan Opera, the Royal Opera House, Covent Garden, Berlin, Vienna and Bayerische Staatsopern, Teatro alla Scala and the Bayreuth, Salzburg, Edinburgh and BBC Proms Festivals, appearing with a number of illustrious conductors including Daniel Barenboim, Sir Simon Rattle, James Levine, Riccardo Muti, Valery Gergiev, Sir Antonio Pappano, Pierre Boulez, Sir Mark Elder, Sir Colin Davis, Edo de Waart, Fabio Luisi, Donald Runnicles, Sir Simon Rattle, Christian Thielemann, Jaap van Zweden, Daniel Harding, Simone Young, Andris Nelsons, Pietari Inkinen and Gustavo Dudamel.

Simon’s performances as Siegmund in Die Walküre at the Royal Opera House, Covent Garden with Pappano, Teatro alla Scala and Berlin Staatsoper with Barenboim, at the Metropolitan Opera with Runnicles in the celebrated Otto Schenk production returning with Luisi in the Lepage Ring Cycle and in the Götz Friedrich production at Deutsche Oper Berlin with Rattle were performed to wide critical acclaim. He was described in the international press as "an exemplary Siegmund, terrific of voice", "THE Wagnerian tenor of his generation" and "a turbo-charged tenor".