Maria Callas was an American-born Greek soprano acclaimed as one of the most influential opera singers of the twentieth century. Celebrated for her wide vocal range, exceptional bel canto technique, and intense dramatic expression, she was known as "La Divina" for her artistry. Her repertoire included a vast range of roles, from the works of Donizetti, Bellini, and Rossini to Verdi, Puccini, and, early on, Wagner. Born in New York City to Greek immigrant parents, Callas received her musical training in Greece and launched her career in Italy. Despite personal challenges, including difficult family relationships, wartime hardship, and declining health, she captivated audiences worldwide. Her life was often the subject of media attention, especially regarding her famous rivalry with Renata Tebaldi and her relationship with Aristotle Onassis. Beyond the headlines, Callas's remarkable legacy as an opera artist endures, earning praise from figures such as Leonard Bernstein and remaining a benchmark for singers and music lovers.