Question: Which American operatic baritone and actor sung in Porgy and Bess album 
Sentence (from "Robert Mosley"): He drew particular acclaim for his portrayal of Porgy in George Gershwin's "Porgy and Bess", a role which he portrayed in the landmark 1976 Houston Grand Opera production, on Broadway, and at the Metropolitan Opera among other opera companies both in the United States and in Europe.
Relevant evidence: No