The opera diva Maria Callas, a glamorous, commanding, larger-than-life, caustic, and surprisingly funny pedagogue is holding a singing master class.

Included in her musings are her younger years as an ugly duckling, her fierce hatred of her rivals, the unforgiving press that savaged her early performances, her triumphs at La Scala, and her relationship with Aristotle Onassis.

Directed by Leonard Foglia, the original cast featured Zoe Caldwell (as Callas), Audra McDonald (as Sharon), Karen Kay Cody, David Loud, Jay Hunter Morris, and Michael Friel.

[5] Master Class ran at the Kennedy Center from March 25, 2010 to April 18, 2010, directed by Stephen Wadsworth and starring Tyne Daly as Callas.

Directed by Stephen Wadsworth, the cast featured Tyne Daly as Callas, with Sierra Boggess as Sharon and Alexandra Silber as Sophie.

[7] This production transferred to the West End at the Vaudeville Theatre from January to April 2012, with Daly as Callas and Naomi O'Connell as Sharon.

[18] In 2018 and 2019 a production of Master Class took place in Athens, Greece, at the Dimitris Horn Theatre with Greek actress Maria Nafpliotou in the starring role.

[19] Ben Brantley, in his review of the 2011 Broadway revival for The New York Times wrote that, although Master Class is not "a very good play", he felt that Tyne Daly "transforms that script into one of the most haunting portraits I've seen of life after stardom.