Iréne Theorin makes her San Francisco Opera debut in a role she has performed at the Royal Opera, Covent Garden and in Copenhagen, Tel Aviv, and Tokyo. The Swedish soprano began her studies in Göteburg and then continued at the Music Academy and the Royal School of Opera in Copenhagen, working with Susanna Eken, Birgit Nilsson, Ingrid Bjoner and Oren Brown. Upon leaving the Royal School of Opera, the artist became a member of the Royal Opera in Copenhagen, where she made her debut as Donna Anna (Don Giovanni). Other roles with that company include the title roles of Tosca and Aida, Nedda (Pagliacci), Eva (Die Meistersinger von Nürnberg), Leonore (La Forza del Destino), Elisabetta (Don Carlo), Sieglinde (Die Walküre), Senta (Der Fliegende Holländer), Isolde (Tristan und Isolde), Elisabeth (Tannhäuser), and Brünnhilde (Der Ring des Nibelungen). Other career highlights include Brünnhilde (Die Walküre, Siegfried) with the Metropolitan Opera; Isolde in Brussels and Essen; Brünnhilde (Der Ring des Nibelungen) in Köln and Dresden; the title role of Elektra at the Salzburg Festival; and Brünnhilde (Siegfried) and the title role of Ariadne auf Naxos with Washington National Opera. Her engagements in the 2010–11 season include Amelia (Un Ballo in Maschera) with Washington National Opera, Isolde in Copenhagen and Tokyo, Kundry (Parsifal) with English National Opera, Brünnhilde (Die Walküre) with Berlin State Opera, and Turandot in Copenhagen.