Who do you consider to be the most-well known contemporary opera singer?

May be deads or alive, but must have worked within the last 50 years.

Luciano Pavarotti wins hands down. Other notables: Maria Callas, Beverly Sills, Placido Domingo, Kiri Te Kanawa.

Pavarotti, Placido Domingo, Beverly Sills, Renee Fleming, Anna Netrebko.

Jose Carreras, Dame Kiri Te Kanawa, Jussi Bj枚rling, Pavarotti, Domingo, Anna Netrebko, Rolando Villazon, Angela Gheorgiou, Maria Callas...

well, Enrico Caruso falls out of your date line.
Please don't forget about Marian Anderson, the first black opera singer engaged at the Met.
Or Leontyne Price, or Jessye Norman, Simon Estes, Grace Bumbry, Martina Arroyo, Shirley Verrett.
From elsewhere around the world:
the Russian bass Chaliapin; the Bulgarian bases Boris Christoff or Nicolai Ghiaurov;
the English tenor Peter Pears, the unforgettable German tenor Fritz Wunderlich, the Canadian tenor Jon Vickers.
Mezzos Agnes Baltsa ( from Greece) Tatiania Troyanos ( ditto) Italian Fiorenza Cossotto.
did we forget Dame Joan Sutherland?
Or Birgit Nilsson and Kirstin Flagstad?
We could go on for a long long time on this subject....
What's your opinion?