* A FanFic example is found in the ''Symphony of the Sword'' arcs of UndocumentedFeatures. The main character has a rock band that plays a cover of ''Rockin' in the Free World'' during a big, onesided space battle, broadcasting their music over the bad guy's comm frequencies. Another arc of the same setting has a group of mercenaries who use a similar tactic that they call the "Goldfish Warning".
* Subverted in FanFic/WithStringsAttached; though the entire book is about Music/TheBeatles, they play music just a few times, with only the effects one would expect from music on Earth. They even sneer a bit at the notion that their music might be magical.
* In the ''Franchise/{{Pokemon}}'' fic ''[[http://www.fanfiction.net/s/2053520/1/Latias_Journey Latias' Journey]]'', we have the Pokerockers. Their use of the PowerOfRock has assisted in killing an EldritchAbomination, a walking DiabolusExMachina, and was co-opted by the local ''goddess'' in the climactic fight. In the sequel, the Pokerockers return to compete in the TournamentArc, and make it pretty far via this trope (and a [[ZergRush vast army of roadies]]) -- they then ''stop a volcano with music''.
* The ''{{My Little Pony Friendship Is Magic}} fic ''[[http://www.fimfiction.net/story/91221/element-seven Element Seven]]'' has the main character Josh Larson, whose guitar [[spoiler: gains the power to fire energy blasts, among other things.]] The climax sees [[spoiler: Josh and the Mane Six send off [[BigBad Queen Chrysalis]] with Music/{{Dragonforce}}'s "Fury of the Storm."]]
* ''ThirtyHs'' is a ''Franchise/HarryPotter'' fanfic in which [[InNameOnly "Harry"]] wields the mighty guitar Fuckslayer and "Scrumblegort" has the immortal line, "HARRY, YOU MUST ROCK THE FUCK OUT." Too epic to be believed.
* [[Franchise/ResidentEvil Wesker's New Life]]
-->[[http://www.fanfiction.net/s/6007184/1/Weskers_New_Life "Isn't it obvious? We're breaking out of here.With the power of ROCK AND ROLL."]]
* FanFic/ManchesterLost has the protagonists defeat [[spoiler: {{Satan}} and [[DemonLordsAndArchdevils everyone else]]]] by singing [[Music/{{Journey}} Don't Stop Believing]].
* Douglas Sangnoir of Robert Schroeck's ''Fanfic/DrunkardsWalk'' saga gains various magic powers from different songs, usually lasting as long as the song does: Billy Joel's "We Didn't Start The Fire" lets him (and anyone else in the vicinity) relive the second half of his world's twentieth century; "Konya Wa Hurricane" from ''BubblegumCrisis'', unsurprisingly, lets him summon and control a powerful cyclonic storm; and "I'm a Pioneer" from ''TenchiMuyo'' makes him impervious to vacuum and capable of superluminal flight.
* The DeconstructiveParody "[[Fanfic/TheConversionBureau The Conversion Bureau: Metal Ripper]]" has Celestia being purged of an [[DemonicPossession demon]] by {{Sabaton}}'s [[http://www.youtube.com/watch?v=QZm4zseMok0 Primo Victoria]].
* In ''FanFic/TheJadedEyesSeries'', wizarding students learn to harness this power at Noctiluca Academy.
* Early stories in Fanfic/{{the Calvinverse}} featured this a lot.
** The original version of ''Fanfic/CalvinAndHobbesTheMovie'' was the first to feature this, as Calvin performs a [[BigLippedAlligatorMoment rather out-of-place]] {{homage}}[=/=][[{{Plagiarism}} rip-off]] of ''WesternAnimation/TheSpongeBobSquarePantsMovie'' (which the remake thankfully leaves out).
** The aliens ends up [[DefiedTrope defying]] it in [[Fanfic/CalvinAndHobbesIIIDoubleTrouble the sequel]], however.
** Meanwhile, the above scenario ends up happening ''again'' in ''Fanfic/TroubleIsland''.
** Finally, Calvin uses the same guitar from before to break out of his prison in ''Fanfic/RetroChill''.
* Beelzebub from ''FanFic/SonicXDarkChaos''. He invented both rock n' roll and guitars [[NoodleIncident by accident]] in the middle of an epic drug binge. His guitar (called [[ICallItVera Fuckslayer]] in a ShoutOut to ''ThirtyHs'') was the very first guitar ever invented and is capable of creating such noise it can shake apart ''warships'' and cause enemies [[LudicrousGibs to explode]].
* In ''[[http://archiveofourown.org/works/430088/chapters/726865 L's Rock Band]]'' Light Yagami picks up a "Death [[PunnyName Note]]" as in a magic Shinigami guitar that grants Godlike powers.
* In Fanfic/TheCadanceverse , Burning Sun and Nightmare Moon are defeated by playing Voltaire's "Riding a Black Unicorn..." at them with Elements of Harmony-infused instruments. A {{Golem}} is also defeated by singing ''Eye of the Tiger'' while casting spells at it.
* In ''Fanfic/TheTabulaAvatarUniverse'', TabletopGame/DungeonsAndDragons bards can channel popular Earth music a la Literature/{{Spellsinger}} for very effective, often unpredictable, results.
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