- Luciano Pavarotti: An Italian tenor known for his powerful voice and emotive performances. He was one of the "Three Tenors" along with Plácido Domingo and José Carreras.
- Maria Callas: An American-Greek soprano who became known as one of the greatest opera singers of the 20th century. Her performances were characterized by intense emotional intensity and powerful vocal technique.
- Plácido Domingo: A Spanish operatic tenor, conductor, and arts administrator. He is known for his versatility, having sung a wide range of roles in different languages.
- Renée Fleming: An American soprano known for her beautiful tone, impeccable technique, and elegant stage presence. She is one of the most acclaimed classical singers of her generation.
- Anna Netrebko: A Russian soprano known for her powerful voice, dramatic interpretations, and captivating stage presence. She is one of the most sought-after operatic singers today.
- Jonas Kaufmann: A German tenor known for his warm, lyrical voice, strong stage presence, and charismatic performances. He is considered one of the leading operatic tenors of the present day.
- Joyce DiDonato: An American mezzo-soprano known for her versatility and ability to excel in a wide range of repertoire. She is praised for her nuanced interpretations and engaging stage presence.