You may recall some of the great vocalists from Broadway, Opera, and Rock & Roll.

Broadway: Michael Crawford, Robert Goulet, Richard Harris.....

Opera: Björling; Carreras, Corelli, Domingo, Gigli, Pavarotti, Tebaldi.....

Rock & Roll: Beatles, Gene Chandler, Little Anthony, Elvis Presley, Fred Paris, Frankie Valli

Fabulous as they were in their respective genres, one would not easily imagine them performing ALL 3 genres to the level of greatness for which they are known.