One of today’s most prominent superstars pays homage to one of the top opera singers and defining personalities of the 20th century, Maria Callas: on May 15, 2024, at the Royal Opera House Muscat, Sonya Yoncheva appears in a concert honoring the Greek-American soprano. She is joined by another legendary artist, baritone Leo Nucci, while Leonardo Sini conducts the Orchestra Filarmonica Italiana.