In 1974, Caballé appeared in the title role of Verdi's "Aida" at the Liceu in January, in Verdi's "I vespri siciliani" at the Met in March, and in "Parisina d'Este" at Carnegie Hall, also in March. She appeared as Norma at the Bolshoi Theatre in Moscow and in "Adriana Lecouvreur" at La Scala in April. She was filmed as Norma in Orange in July by Pierre Jourdain. She recorded "Aida" with Riccardo Muti in July and made a recording of duets with Giuseppe Di Stefano in August. In September 1974, she underwent major surgery to remove a large benign mass from her abdomen. She recovered and was performing again on stage by early 1975. In 1976 Caballé appeared at the Met once again as Norma and sang her first Aida in that house, alongside Robert Nagy as Radamès and Marilyn Horne as Amneris. She appeared in the title role of "Ariadne auf Naxos" by Richard Strauss and sang Mimì in Puccini's "La bohème" with Luciano Pavarotti as Rodolfo.