Acclaimed interpreter of the most famous Verdi and Puccini heroines with a repertoire that ranges from bel canto to verismo, Maria José Siri is considered today among the most important sopranos on the international opera scene. "Capable of a total abandonment" with "brilliant treble" (Neue Zürcher Zeitung) combined with a "steel voice with lyricism and pathos" (The Financial Times) is considered an "interpreter of maximum reference and not only for the luxuriant vocality but also for an emission that ideally recalls the full and rounded sound of Tebaldi ”(Opera Áctual). 

After playing Lucrezia Contarini, exalting the poignant dramatism of Verdi's heroine in a new production of I due Foscari at the Teatro del Maggio Musicale Fiorentino, she enchanted the Austrian audience of the Musikverein in Graz singing an incisive Abigaille Nabucco alongside Plácido Domingo. She would play this role successfully also that season at the Arena di Verona along with her signature role Aida. She also performed this role in a production at the Semperoper Dresden. In addition, at the Arena di Verona she performed with excellent feedback also on the occasion of the Gala Domingo in Verdi Opera Night, making her debut as Lady Macbeth Macbeth. 

Born in Uruguay from Italian roots, Maria José approached music from the age of five and began her vocal studies at ENAL in Montevideo, first specializing at the Paris Conservatory and then with the great Ileana Cotrubas. In 2002 she took her first steps on the stages of Uruguay and Argentina, arriving to Europe in 2008 with Leonora Il Trovatore at the Carlo Felice Theater in Genoa. 

Since then, her career has been consolidated and has grown strongly since 2016, when she open the Teatro alla Scala season as Madama Butterfly to great success among audience and critics. In 2017 She was awarded with the Opera Oscar. At La Scala, where she made her debut in 2009 as Aida, she would come back again as the titlte role for Aida (2015) and then in new productions of Francesca da Rimini (2018) and Manon Lescaut (2019). In addition to an intense relationship with the main Italian theaters - including above all the Teatro del Maggio Musicale Fiorentino (Adriana Lecouvreur, Suor Angelica / Giorgetta Il Tabarro, Abigaille Nabucco, Lucrezia Contarini I due Foscari)- Maria José Siri has a very deep collaboration with the Wiener Staatsoper (Maddalena di Coigny Andrea Chenier, Madama Butterfly, Elisabetta di Valois Don Carlo, Leonora Il Trovatore, Tosca) and with the main German theaters: Staatsoper and Deutsche Oper Berlin, Bayerische Staatsoper, Hamburgische Staatsoper, Semperoper Dresden. She is also very present in Belgium, at the Opera Royale de Wallonie and in Spain, especially at the Gran Teatre del Liceu, at the ABAO and at the Pérez Galdós Theater. Acclaimed by Tokyo's New National Theater at the Savonlinna Festival, she also made a triumphant return to Latin America last April, performing two galas at the Teatro Colón alongside Plácido Domingo. 

Her relationship with the Arena di Verona -a city she has chosen also as her home- is special: the artist has taken part of numerous gala evenings, as well as playing in their summer festival numerous roles such as Donna Elvira Don Giovanni, Nedda I Pagliacci/ Santuzza Cavalleria Rusticana and Aida, role of which she will soon celebrate her 150th performance, interpreted from Europe to Japan to Brazil and even in front of the Pyramids of Giza. Also in Verona at the Philharmonic Theater she played Giorgetta Il Tabarro. 

Among the heroine roles most loved by Maria José Siri is the warrior Odabella in Attila with which she made her debut at the Teatro Comunale di Bologna (2016, DVD Cmajor) and then faced at the Teatro Regio di Parma (2018 and 2021): also with this role, she made her debut in July 2022 at the Royal Opera House, Covent Garden, in London.