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American opera singer Thomas Hayward, American opera singer Leonard Warren, American opera singer and actress Gladys Swarthout, American opera singer and actor Lawrence Tibbett, American opera singer Jan Peerce, American opera singer Marilyn Cotlow, American bandleader, trombonist and composer Tommy Dorsey, American singer Fran Warren, American singer and actor Perry Como, American opera singer Dorothy Kirsten, and Italian opera singer Cloe Elmo, with musician Jack Priest sitting at the piano, in a studio at RCA Victor Studios on East 24th Street, New York City, New York, December 1948. The group celebrated the end of the ban imposed by American Federation of Musicians (AFM) leader James Petrillo on recording for American record companies, in a dispute over royalty payments. (Photo by European/Archive Photos/Getty Images)