Maria Callas was one of the most famous of all 20th - century opera singers, but many believe that her rapid weight loss resulting from a drastic diet contributed to the deterioration of her voice.
Maria Callas adalah salah seorang penyanyi opera terkenal pada abad ke - 20, tetapi banyak orang percaya bahwa kualitas suaranya merosot karena berat badannya turun drastis akibat diet ekstrem.