On with the Show! is a 1929 American pre-Code musical film produced by Warner Bros. Filmed in two-color Technicolor, the film became the first all-talking, all-color feature-length film, and the second color film released by Warner Bros.; the first was the partly color musical The Desert Song (1929).

Musical film is a film genre in which songs by the characters are interwoven into the narrative, sometimes accompanied by dancing. The songs usually advance the plot or develop the film's characters, but in some cases, they serve merely as breaks in the storyline, often as elaborate "production numbers".