'I still can't actually believe this is happening sometimes,' Buffett tells NPR's David Greene. To hear a full Broadway cast perform his music has been a dream come true for the musician. The title of the musical, of course, references Buffett's most famous song, 'Margaritaville.' Like its namesake, the musical is about a beach bum who lives on a tropical island, playing the guitar and singing for tourists covered in oil. Down below, technicians inflate beach balls, which, in true Buffett fashion, are to be dropped on theater-goers' heads at the end of the show. In the balcony of the Marquis Theatre on Broadway, Jimmy Buffett watches the final rehearsal for his new musical, Escape to Margaritaville.