Carousel is the second musical by the team of Richard Rodgers (music) and Oscar Hammerstein II. The 1945 work was adapted from Ferenc Molnár's 1909 play Liliom, transplanting its Budapest setting to the Maine coastline. The story revolves around carousel barker Billy Bigelow, whose romance with millworker Julie Jordan comes at the price of both their jobs. He participates in a robbery to provide for Julie and their unborn child; after it goes tragically wrong, he is given a chance to make things right. A secondary plot line deals with millworker Carrie Pipperidge and her romance with ambitious fisherman Enoch Snow. The show includes the well-known songs "If I Loved You", "June Is Bustin' Out All Over" and "You'll Never Walk Alone". Richard Rodgers later wrote that Carousel was his favorite of all his musicals.

Musical theatre is a form of theatrical performance that combines songs, spoken dialogue, acting and dance. The story and emotional content of a musical – humor, pathos, love, anger – are communicated through words, music, movement and technical aspects of the entertainment as an integrated whole. Although musical theatre overlaps with other theatrical forms like opera and dance, it may be distinguished by the equal importance given to the music as compared with the dialogue, movement and other elements. Since the early 20th century, musical theatre stage works have generally been called, simply, musicals.