Are Il re pastore and Giasone both operas?
Il re pastore Il re pastore ("The Shepherd King") is an opera, K. 208, written by Wolfgang Amadeus Mozart to an Italian libretto by Metastasio, edited by Giambattista Varesco. It is an opera seria. The opera was first performed on 23 April 1775 in Salzburg, at the Palace of the Archbishop Count Hieronymus von Colloredo.
Zazà Zazà ] is an opera by Ruggero Leoncavallo, with the libretto by the composer. Its première at the Teatro Lirico di Milano on 10 November 1900, starring Rosina Storchio as Zazà, Edoardo Garbin as Milio, Mario Sammarco as Cascart and Clorinda Pini-Corsi as Anaide, and conducted by Arturo Toscanini, began its triumphant run of performances in opera houses around the world.