Since her acclaimed debut at the Vienna State Opera as "Lulu", she has been a regular guest on the world's most important opera stages, including the Opéra de Paris, the Théâtre de la Monnaie in Brussels, the State Operas in Berlin, Hamburg, Munich and Vienna, the Theater an der Wien, the Metropolitan Opera in New York, the LA Opera, the Chicago Lyric Opera and the Salzburg and Aix-en-Provence Festivals.