All Singing, All Dancing

Plot
Homer rents the family the movie Paint Your Wagon. He and Bart expect to see a violent Western starring Lee Marvin, Clint Eastwood and someone who appears to be Lee Van Cleef; the truth is, it is a musical. This causes Homer to dispose the tape and condemn singing, but Marge says that Homer often sings.

Ultimately, this allows clips of the following songs from these episodes to be shown:


 * "Baby on Board" from "Homer's Barbershop Quartet";
 * "We Put the Spring in Springfield" from "Bart After Dark";
 * "Springfield, Springfield" from "Boy-Scoutz N the Hood";
 * "Who Needs the Kwik-E-Mart?" from "Homer and Apu";
 * Krusty's version of "Send In the Clowns" from "Krusty Gets Kancelled";
 * "See My Vest" from "Two Dozen and One Greyhounds";
 * "The Monorail Song" from "Marge vs. the Monorail";
 * "In the Garden of Eden" (really In-A-Gadda-Da-Vida by Iron Butterfly) from "Bart Sells His Soul";
 * "We Do" from "Homer the Great".

The family's singing motivates Snake Jailbird to come in; he is bothered by the Simpsons' singing and constantly tries to kill them, ironically doing his own singing. During the credits, Snake's voice can be heard trying to prevent the theme music from playing in the background, having grown annoyed of music over the course of the episode.

Trivia

 * All of the musical numbers in this episode, with the exception of "We Put the Spring in Springfield," are on the soundtrack Songs in the Key of Springfield. "We Put the Spring in Springfield" instead appears in Go Simpsonic with The Simpsons.
 * The first shots by Snake are heard over Phil Hartman's name in the credits (Hartman was shot dead by his wife as he slept, four months after this episode first aired). While technically this is his last episode produced, his only part in this episode is a clip from Marge vs. the Monorail.
 * When this episode is shown in syndication, the endings to the first two song clips are cut out. Sometimes, the credits also cut off right after Snake's first shots.
 * Bart no longer likes Burns' "See My Vest" song, unlike in Two Dozen and One Greyhounds.
 * At one point, towards the end of the episode, there is a banner saying "Simpsons Clip Show" and the episodes production code which is (5F24), an example of fourth wall-breaking.
 * When Lisa lists all the people who sing (Krusty, Mr Burns and Apu), they consist of all the male voice actors (Dan Castellaneta, Harry Shearer, and Hank Azaria, respectively).
 * In the Latin American dubbing this is the first time when songs have been dubbed as well, in the original episodes the songs are broadcast in English without subtitles and the rest of the audio in Spanish. It also happens at Brazilian dubbing.
 * In the Latin American dubbing Bart's voice has been replaced for another person, the person who dubbed Bart for the past 9 seasons would later come back on the 15th season, ironically when the rest of the cast have left and been replaced.