[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/killswitch_engage.jpg]]
[[caption-width-right:350:Obligatory photo of the band.]]

Killswitch Engage is a five-piece {{metalcore}} band from Westfield, Massachusetts, formed in the late nineties. The band currently consists of vocalist Jesse Leach, guitarists Joel Stroetzel and Adam Dutkiewicz, bassist Mike D'Antonio and drummer Justin Foley.

Original singer Jesse Leach was replaced with former Blood Has Been Shed singer Howard Jones for almost a decade, before returning when Howard quit due to health problems. [[note]]Two types of Diabetes that were ''not'' helped by the band's hectic touring lifestyle[[/note]]

The band has released five studio albums to date. MTV once called the band one of "[[SmallReferencePools the founders of]] {{metalcore}}", which is actually inaccurate as the first metalcore bands were from the early nineties and consisted of bands like Integrity and Earth Crisis; the band's main innovation was fusing the sound of metalcore with the harmonized guitar melodies of MelodicDeathMetal and clean singing, [[TropeCodifier producing the subgenre which would come to be known as melodic metalcore]]. At any rate, Killswitch Engage are one of the most popular heavy groups around today, and are known as forerunners in the New Wave of American Heavy Metal, along with other popular heavyweights such as Music/{{Lamb of God}}.
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!!Killswitch Engage contains the following tropes:

%% * CarefulWithThatAxe -- "My Curse" and the start of "Rose of Sharyn".
* {{Cloudcuckoolander}} -- Adam is known for acting a little...out there during live performances.
* CoverVersion: Of "Holy Diver", originally by Music/{{Dio}}. The music video is notable for being a fairly close homage to the original, but with much higher production values and a clearer plot.
%% * GriefSong -- "My Curse" and "Rose of Sharyn."
* HeavyMetal -- Though some purists would argue that since they're metalcore, they're merely a form of hardcore punk...
* LongestSongGoesLast:
** ''Alive or Just Breathing'' ends with "Rise Inside" ([=5:56=])
** ''As Daylight Dies'' ends with "Reject Yourself" ([=4:44=])
** ''Atonement'' ends with "Bite the Hand That Feeds" ([=4:48=])
* LyricalDissonance -- They have tons of aggressive, super heavy songs with surprisingly positive lyrics.
* {{Metalcore}}: They're credited with launching the genre into the mainstream.
* MetalScream -- In every song. Even "Holy Diver".
* {{Mood Whiplash}} -- "My Last Serenade" opens with quiet ambient sounds, gentle acoustic guitar, and soft singing before launching into a steam-rolling metal assault.
** Same thing with "My Curse," which starts with melodic, lightly distorted guitar chords that segue into a crushing riff and a MetalScream.
* ObsessionSong -- Quite a few of them. They even made a song called "My Obsession" for the ''Creator/RoadrunnerRecords'' collaboration album for ''VideoGame/GodOfWarIII'' entitled ''God of War: Blood and Metal''.
* OlderThanTheyLook -- Believe it or not, Howard Jones is ''50''.
* PowerBallad -- "The End of Heartache" and "The Arms of Sorrow" for the Jones era; "Always" for the Leach era.
%% * PunctuatedForEmphasis -- Prechorus of "My Curse".
* RunningGag -- The video for "Holy Diver" features the king taking a large bite out of a chicken leg [[RuleOfThree three separate times]].
* SelfTitledAlbum -- Two, their debut and their fifth album.
* SlidingScaleOfIdealismVersusCynicism -- Generally idealistic.
* SoftWater -- The "Arms of Sorrow" music video, which has a man falling off what looks like a very tall apartment building, ends with said man landing in a swimming pool and apparently surviving in one piece.
* SoloSideProject: Guitarist Adam Dutkiewicz of Killswitch Engage started a solo project (with former Killswitch Engage vocalist Jesse Leach) called Times of Grace and also had the onetime studio project Serpentine Dominion with [[Music/CannibalCorpse George Fisher]] and [[Music/TheBlackDahliaMurder Shannon Lucas]]. Subverted with Death Ray Vision; while Mike D'Antonio is a member, it was more [[Music/ShadowsFall Brian Fair's]] project than his and was conceived as the SpiritualSuccessor to Overcast; with Fair gone, the leadership has largely shifted to Pete Cortese.
* SopranoAndGravel -- Both Leach and Jones utilize the one-man variant.
* StartMyOwn: How they started. By 1998, Overcast was basically done and Aftershock was seeing its own twilight, and both Mike D'Antonio and Adam Dutkiewicz had plenty of musical ideas kicking around in spite of their mutual lack of functioning bands to make those ideas happen, which led to the formation of Killswitch Engage.
* SubduedSection -- The band utilizes this trope very often; "Desperate Times", "The Arms of Sorrow" and "The End of Heartache" are examples.
* WholesomeCrossdresser: Adam Dutkiewicz in the music video for "Holy Diver."

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