OAKLAND, Calif., May 11, 2015 (BUSINESS WIRE) --Pandora  P, -0.22% the leading Internet radio service, has partnered with Josh Groban to present an exclusive live performance on June 1, 2015 in New York City. In addition to this intimate performance, Pandora worked with the singer to curate a custommixtape featuring notable classic and modern theater favorites. In a video interview available only to Pandora listeners, Josh sat down with noted writer Alan Light to discuss Stages.