Artists like Plácido Domingo

Maria Callas was an American and Greek soprano, and one of the most renowned and influential opera singers of the 20th century. Critics praised her bel canto technique, wide-ranging voice, and dramatic interpretations. Her repertoire ranged from classical opera seria to the bel canto operas of Donizetti, Bellini, and Rossini, and further to the works of Verdi and Puccini, and in her early career to the music dramas of Wagner. Her musical and dramatic talents led to her being hailed as La Divina.

Il Divo are a multinational classical crossover vocal group. Formed in the United Kingdom in 2003, it is a male quartet that was created and then promoted by British media magnate Simon Cowell for Syco Music, a record label that he had administered. The original members selected by Simon Cowell are Swiss tenor Urs Bühler, American tenor David Miller, French tenor Sébastien Izambard, and Spanish baritone Carlos Marín.