on her label, while the rest of the Broadway cast made an album for RCA Victor with Dinah Shore singing the Merman role. The label that would dominate the field until the late 1970s, however, was Columbia. They began by issuing an album of the 1946 revival of Show Boat followed by the original Broadway cast of Finian's Rainbow in 1947. A year later the label introduced LP records and used the format for two best sellers: Kiss Me, Kate and South Pacific, both recorded and released in 1949. Under the leadership of Columbia's Goddard Lieberson, the label's cast recordings came to define the genre. Columbia Masterworks produced the original cast recordings of such shows as The Pajama Game, My Fair Lady, The Sound of Music, West Side Story, Gypsy, and Camelot. Lieberson also recorded important shows that had failed at the box office including Candide and Anyone Can Whistle. In 1956, he recorded Frank Loesser's musical The Most Happy Fella, which had so much music that it had to be released as a 3-LP set, an almost unheard of venture for an original cast album in the 1950s. A 1970 documentary by D. A. Pennebaker, Original Cast Album—Company gives a straightforward view of the making of a cast recording. It shows how the recording studio looks, how performers are arranged, and how the director behaves. The cast feels the pressure of delivering a definitive performance, with a degree of perfection beyond that ever required on stage, under a time limit imposed by the high cost of studio time. Throughout the 1950s and 1960s it was not uncommon for cast albums to become best sellers. My Fair Lady, The Music Man, Funny Girl, and Hello, Dolly! all reached the #1 position on the Billboard magazine best-sellers chart. As popular music split away from the traditional Tin Pan Alley song stylings of Broadway and Hollywood, and rock music became the dominant pop culture form, show albums began selling less well, albeit with exceptions like Hair, which is a rock musical and as of December 2022 is the last cast album to chart at No. 1 on the Billboard 200. Also, as radio and TV moved away from showcasing Broadway numbers the ability for a show to reach an audience beyond the traditional Broadway fans lessened. Today few show albums even appear in the Billboard top 200, and the rare breakout hit