 Boozer made her debut at the Metropolitan Opera on Christmas Day in 1979 as Hansel to Gail Robinson's Gretel in Engelbert Humperdinck's "Hansel and Gretel".She continued to perform at the Met for the next 11 years, portraying such roles as the Composer in Strauss' "Ariadne auf Naxos", Cornelia in Handel's "Giulio Cesare", both the Muse and Nicklausse in Offenbach's "The Tales of Hoffmann", Meg Page in Verdi's "Falstaff", Octavian in "Der Rosenkavalier", Olga in Tchaikovsky's "Eugene Onegin", the Page in "Salome", Suzuki in Puccini's "Madama Butterfly", and Wellgunde in Wagner's "Das Rheingold".Her last performance at the Met was as Prince Orlofsky in "Die Fledermaus" on January 13, 1990.