Winner of several singing competitions, including the Franco Abbiati in 2014. She made her professional debut in 2007 but gained prominence in 2011 through her participation in the opera I vespri siciliani in Turin, conducted by Gianandrea Noseda. Since then, she has performed in theaters worldwide, such as the Metropolitan Opera in New York, Teatro alla Scala in Milan, the Royal Opera House in London, Teatro dell'Opera di Roma, Teatro di San Carlo in Naples, Arena di Verona, Teatro La Fenice in Venice, as well as in Berlin and Monte Carlo.

Theorin is a frequent performer at leading opera houses in cities such as London, Milan, New York and Munich. Her relationship with the Gran Teatre del Liceu began in the 2012/13 season, when she starred in Tristan und Isolde on the occasion of the visit the prestigious Bayreuth Festival's orchestra and chorus paid to Barcelona. Since then she has played other heroines here, notably Brünnhilde in Götterdämmerung (2015/16), which earned her the prize for the best female singer in the Critics' Awards organized by Amics del Liceu.

Soprano Ermonela Jaho, who received her first singing lessons at the age of six, later won a scholarship to study under Katia Ricciarelli in Mantua and attended the Accademia Nazionale di Santa Cecilia in Rome. She has won awards in Milan, Ancona and Rovereto.

Her most emblematic roles include the leads in La traviata and Madama Butterfly, Liù in Turandot, and Suor Angelica. French, Russian and German operas are also part of her repertory.

Currently music director of the Los Angeles Philharmonic, the Opéra national in Paris and the Simón Bolívar Symphony Orchestra, his tireless advocacy for arts education has brought classical music to new audiences around the world.

He made his debut at the Gran Teatre del Liceu in the 2020/21 season with Il trovatore and has returned with Otello (2020/21), Die Zauberflöte (2021/22) and Mahler's 9th Symphony (2022/23).