It’s a weekend of firsts with two major stars making major role debuts, while two other major stars headline an important world premiere. But it is also a weekend of endings as one of the greatest opera legends says goodbye to staged opera. Here is a look at what will definitely an incredibly unforgettable weekend.

L’Italiana in Algeri-Teatro Colón, Argentina

After a successful Teatro Colon debut, Nancy Fabiola Herrera gives her final performance of the run in Rossini’s comic gem. She is joined by Xabier Anduaga, Nahuel Di Pierro, and Damon Ploumis. Antonello Allemandi conducts the production by Joan Anton Rechi.

Samson et Dalila-Wiener Staatsoper, Austria

Elīna Garanča and Roberto Alagna join forces to make their role debuts in Saint-Saëns masterful opera. As one of the most anticipated operas of the season, both Garanča and Alagna have shown their chemistry on stage and Vienna audiences are likely in for a treat. Carlos Álvarez rounds out the cast in the new production by Alexandra Liedtke with Marco Armiliato conducting.

Norma-Teatro La Fenice, Italy

Mariella Devia begins her final run as “Norma” in what should be a historical event. It also marks her final opera performances so Bel Canto and opera lovers should be in for a treat. Carmela Remigio and Stefan Pop also star. Riccardo Frizza conducts the opening night performance, which is set to be broadcast on Rai 3.

Lessons of Love and Violence-Royal Opera House, United Kingdom