[citation needed] She made guest appearances as Gilda, at the Royal Opera House in London in 1951, and at the Glyndebourne Festival, where she sang Konstanze in Die Entführung aus dem Serail, Adele in Le comte Ory, and Zerbinetta in Ariadne auf Naxos[1] to great acclaim.
She made her American debut at the San Francisco Opera in 1950, as the Queen of the Night in The Magic Flute.
She also sang operetta, and enjoyed considerable success in London in 1970, in a revival of the musical The Great Waltz at the Theatre Royal Drury Lane, which coincided with her appearance on Desert Island Discs.
[3] Having appeared in the title role of the 1951 German film Die Dubarry, for the 1955 Powell and Pressburger musical Oh...
[4] She made her final stage appearance at the Gärtnerplatz in 2007, in the speaking role of Princess Anhilte in Die Csárdásfürstin.