On February 12, 1958 Davy made her debut at the Met as Aida with Kurt Baum as Radamès, Leonard Warren as Amonasro, Irene Dalis as Amneris and Fausto Cleva conducting. She was notably the first black artist to appear as Aida at the opera house, and the 4th black artist to appear on the Met stage after Marian Anderson, Robert McFerrin, and Mattiwilda Dobbs. She appeared in 15 performances at the Metropolitan Opera House over four seasons, including performances of Pamina in Mozart’s "The Magic Flute" and Nedda in Leoncavallo’s "Pagliacci". In July 1961 she toured with the Met to Israel where she performed the role of Fiordiligi in "Così fan tutte" with the Israel Philharmonic Orchestra in Tel Aviv. Her last appearance at the Met was as Leonora in "Il trovatore" with Giulio Gari as Manrico in November 1961.