An Insert Song is a song with lyrics that is inserted during a certain scene of a show or series. Usually, this is done to give a scene more emotional impact by using a song with lyrics which relate to the scene in question. Sometimes though, especially if it's a music-oriented show, the creators will have the characters play a song in-story.

What sets the in-story version apart from a regular MusicalEpisode is that there has to be something important happening in-story as justification for why someone is singing, and that the entire cast doesn't have to be involved.

This is very common in anime, as detailed in AnimeThemeSong, since most voice actors/actresses also happen to be popular singers.

Note that the opening theme only counts an example if it's used in the middle of the show, when something is actually happening. And the ending theme doesn't count as an example if it starts during a scene which segues into the credits.

Compare AnimeThemeSong (the opening theme, which can be used as this sometimes), ImageSong (can overlap with this if the song in question is brought into the show), {{Leitmotif}} (when a particular piece of music is tied to a certain character), and ThemeMusicPowerUp (when epic BGM is playing while a character is kicking ass).

* The ''Franchise/LyricalNanoha'' series has several:
** [[ Take A Shot]] from ''Anime/MagicalGirlLyricalNanoha''
** [[ Brave Phoenix]] from ''Anime/MagicalGirlLyricalNanohaAs''
** [[ Pray]] from ''Anime/MagicalGirlLyricalNanohaStrikerS''.
* ''LightNovel/HaruhiSuzumiya'' also has a couple:
** [[ God Knows]] is used as the concert version of this trope, along with [[ Lost my music...]]
* Being a show about girls forming a music club, ''Manga/KOn'' has quite a few, such as [[ Fuwa Fuwa Time]].
* ''Anime/DigimonXrosWars'' has [[ this]], [[ this]], and [[ this]].
* ''Anime/MekakucityActors'': Given that it's an anime based on a [[LightNovel/KagerouDaze manga and light novel]] based on a [[Music/KagerouProject set of songs]], this was bound to happen: (Warning, spoilers)
** ''[[ Kisaragi Attention]]'' at the end of episode 2.
** ''[[ Mekakushi Code]]'' at the end of episode 3
** And ''[[ Kagerou Days]]'' at the end of episode 4.
* ''Anime/TengenToppaGurrenLagann'' has several.
** ''[[ Happily Ever After]]''.
** ''[[ Sorairo Days]]'' in episode 26
** The "Row! Row! Fight the Powah!" rap is featured in a few songs, most notably ''[[ Libera Me From Hell]]''.
* ''Anime/AngelBeats'' has several in-universe due to the Girls Dead Monster subplot, as well as infamous [[TearJerker Tearjerker]] [[ My Most Precious Treasure]].


* ''Film/SuckerPunch'' had several, such as [[ this]].

[[folder:Visual Novels]]
* ''VisualNovel/KiraKira'', being a VN about forming a rock band, has gems such as [[ Let's Jump]], [[ Kimi no Motoe]], and a rock version of their school theme, [[ O. H. B. I.]], all of them performed during their concerts.
* ''VisualNovel/MuvLuvAlternative'' has Takeru's ImageSong, [[ Wings]], play [[spoiler:at the end of the PTSD Arc, when he finally finds his resolve to save the world]]. [[ Carry On]], another insert, plays at the start of the last arc. The all-ages edition also has the opening play when the last arc is well underway.

[[folder:Western Animation]]
* ''WesternAnimation/PhineasAndFerb'' has several, considering that the entire series runs on {{Musical Episode}}s.
* ''WesternAnimation/TheFairlyOddParents'' also has a number of them, such as [[ My Shiny Teeth And Me]].

[[folder:Video Games]]
* Averted in ''VideoGame/{{Halo 2}}''. In-game, we hear the instrumental version of ''[[ Blow Me Away]]'' by ''Music/BreakingBenjamin''. The [[ original]] is featured in the game's soundtrack.
* The Creator/ShojiMeguro-composed ''[[Franchise/ShinMegamiTenseiPersona Persona]]'' series has a ''lot'' of vocal themes, but uses them in an inversion of the standard expectations - vocal themes tend to play at more trivial moments and the instrumental themes are often reserved for more dramatic, important sequences.
** The standard battle themes in both ''[[{{VideoGame/Persona 3}} 3]]'', "Mass Destruction", and ''[[{{VideoGame/Persona 4}} 4]]'', "Reach Out to the Truth", have vocals. [[BossBattle Boss]] themes are entirely instrumental. ''[[VideoGame/PersonaQShadowOfTheLabyrinth Persona Q]]'', which wasn't composed entirely by Meguro, has vocal themes for both regular battles ("Light the Fire Up in the Night") ''and'' bosses ("Laser Beam").
** For the majority of the game in ''3'' and ''4'', the various exploration themes are vocal. [[spoiler:During the final month of each game, wherein things begin look more grim and the story is reaching its conclusion]], the background music is replaced with usually-somber instrumentals.
** There are a few cases where the "used for dramatic effect" intention is played straight:
*** Most dungeons in ''Persona 4'' have instrumental themes. The only one that doesn't is [[spoiler:Heaven, which the party goes through when the protagonist's [[AdultFear seven year-old cousin is kidnapped]]]] in one of the game's more heartwrenching, dramatic sections.
*** In the finale of ''Persona 3'', [[spoiler:a heavy hip-hop remix of the game's main theme, "Burn My Dread", [[BookEnds first heard in the opening]]]], plays against the [[spoiler:scripted, post-final boss sequence]].
* ''VideoGame/SuperMarioOdyssey'' is the first Franchise/{{Mario}} game in history to have vocal songs of any kind. In this game, there are two: one plays during the New Donk City festival, while the other plays [[spoiler:when Mario and Princess Peach escape the underground lair in the wedding hall on the moon.]]
* ''VideoGame/Klonoa2LunateasVeil'' has one during the "snowboarding" (or something like it) stage, which is sung in the [[SpeakingSimlish made up language]] of the series.