'''Metalcore''' (also known as '''metallic hardcore''' or '''hardcore metal''') is a subgenre of Music/HeavyMetal that combines ThrashMetal with HardcorePunk, and sometimes takes a more melodic approach to the songs than thrash. It is characterised by gratuitous use of the MetalScream, as well as breakdowns. Lots and lots of breakdowns (although due to, ahem, certain bands, this attribute has been {{Flanderized}} a bit). If you're not in the know, a "breakdown" is when the music kind-of slows down to induce moshing or "throwing down"...or something like that. Modern bands often tend to mix it up with clean vocals and melodic riffs (see Melodic metalcore below).

Metalcore began life as a blending between thrash metal and hardcore punk, and was used to describe bands such as [[DirtyRottenImbeciles D.R.I.]], S.O.D., and Music/SuicidalTendencies in the 1980's, however the term changed its meaning in the 1990's to "metallic hardcore", and the genre metalcore originally defined became known as "crossover thrash". This newer "wave" of metalcore included bands such as Integrity, Earth Crisis and Converge. By the end of the nineties, metalcore had evolved into "melodic metalcore", which slowly grew in popularity until the mid-2000s, when it was a big mainstream draw. In fact, today, metalcore is the most commercially popular form of metal.

When combined with DeathMetal, metalcore transforms into {{Deathcore}}. Melodic metalcore is usually fused with MelodicDeathMetal influences and SopranoAndGravel vocal dynamics. Finally, metalcore that contains too much hardcore to qualify as metalcore but enough metal to not entirely qualify as hardcore either (examples being Hatebreed, Terror, and later-era Madball) is occasionally (and derisively) referred to as "brocore" due to the stereotypes of the fans of said bands being dimwitted, thuggish meatheads who go to shows less to enjoy them and more to start fights.[[note]]This actually harks back to the original days of crossover, which tended to attract a troubling amount of thugs at shows who would go just to be as violent as possible in the pit. The same people would then show up at thrash metal shows and do much the same thing, often to the point of driving people away from those shows due to the very real possibility of getting severely injured in the pit thanks to them. It led to a fairly widespread backlash from hardcore, crossover, and thrash musicians alike, all of whom were quite pissed off at having their shows ruined by the aforementioned thugs, with hardcore musicians taking an especially strong dislike to it due to how it ran contrary to hardcore culture as it originally was.[[/note]]

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Bands typically cited as metalcore include:
* The Acacia Strain
* Acme
* A Life Once Lost
* TheAgonist (mixed with melodic death metal and deathcore)
* All Pigs Must Die (mixed with crust punk and sludge metal)
* AllThatRemains (their first album was [[MelodicDeathMetal melodeath]]; recent albums have had strong PostGrunge elements)
* Arkangel
* Music/AsILayDying (With a heavy ThrashMetal bend on later albums)
* Asking Alexandria (arguably the most hated example)
* Atreyu (early)
* Attack Attack! (Combines this with post hardcore and electronic music, sometimes called Electronicore)
* August Burns Red (Also considered ProgressiveMetal)
* Music/AvengedSevenfold (early; later became Music/HeavyMetal / HardRock)
* Beautiful Dying Day (about 30% this and 70% PostHardcore)
* BetweenTheBuriedAndMe (also a ProgressiveDeathMetal band)
* Biohazard (one of the most hated examples of the old guard due to their usage of rapping and NuMetal elements)
* {{Black Veil Brides}} (started as this on "We Stich these Wounds", but changed to {{Hair Metal}} on their follow up)
* Bleeding Through (has flirted with deathcore at various points)
* {{Botch}} (TropeMaker[=/=]UrExample for mathcore along with Music/{{Converge}})
* The Blood Brothers (also mathcore and noise rock)
* BringMeTheHorizon (started off as deathcore, now plays a mix of metalcore and {{post rock}})
* BulletForMyValentine (at first, but they changed styles after ''Scream Aim Fire'' to a more hard rock-based sound, though elements of the genre tend to still be there)
* Burst (has some overlap with ProgressiveMetal, but not enough to truly be called metal)
* Caliban
* {{Candiria}} (mixed with [[{{Jazz}} Jazz Fusion]] and HipHop, though their later material dialed this down and took a more brocore-oriented turn)
* Car Bomb (mathcore)
* Cave-In (Earlier work, some of their later material is more AlternativeMetal)
* The Chariot (also mathcore)
* Music/{{Chimaira}} (mixed with GrooveMetal)
* Coalesce (along with Converge, TDEP and Ion Dissonance the TropeMaker for mathcore)
* Code Orange Kids
* Music/{{Converge}} (TropeMaker for mathcore)
* Cult Leader
* Curl Up And Die
* Daughters (mathcore)
* Music/ADayToRemember (notable for their prominent PopPunk elements)
* Music/DeadByApril (possibly the only metal band ever that overlaps with BoyBand pop)
* Deadguy
* Music/{{Deadlock}} (Mixed with MelodicDeathMetal, with a [[GrooveMetal Djent]] sound later.)
* Music/DemonHunter (although they have strong AlternativeMetal elements and riffs resembling GrooveMetal and NuMetal)
* Music/TheDevilWearsPrada
* Music/TheDillingerEscapePlan (they are part of the sub-genre, Mathcore, so their sound somewhat differs from traditional Metalcore fare)
* Earth Crisis
* Every Time I Die (with quite a few SouthernRock and SludgeMetal elements)
* {{Falling in Reverse}} (their first album was a mix of this with {{pop punk}} and {{Hair metal}}, but their newest release has bizzarely taken on a {{crunkcore}} vibe much to their fans dismay)
* {{Fall Of Troy}}
* The Final Harvest (one of the heavier examples, overlaps with DeathMetal)
* Gaza (highly technical metalcore with heavy grindcore and sludge metal influences)
* God Forbid (likely one of the least hated examples; also falls under ThrashMetal in all albums after and including ''Gone Forever'')
* Harm's Way
* Haste the Day
* Music/{{Hatebreed}}
* Music/HeavenShallBurn (also MelodicDeathMetal)
* HORSE The band (Also Nintendocore)
* In This Moment (only on ''Beautiful Tragedy'' and ''A Star-Crossed Wasteland''; ''The Dream'' was more alt-metal/post-hardcore, while ''Blood'' was more industrial/nu-metal)
* Integrity
* Ion Dissonance (TropeMaker[=/=]TropeCodifier for mathcore with Converge and TDEP, also draws influences from grindcore and noise rock; one of the very heaviest bands of the genre. Later albums also qualify as Music/{{Deathcore}}.)
* KillswitchEngage
* LambOfGod (they're not very melodic, and possibly closer to GrooveMetal or ThrashMetal, though their first couple of albums definitely have significant elements of this)
* Machine Head (recent material, though ''Burn My Eyes'' and ''The More Things Change'' had significant Biohazard influences)
* Music/LoveandDeath (Mixed with NuMetal)
* Meek Is Murder (mixed with screamo and noise rock)
* Memphis May Fire (no clear consensus though since they push the genre as well as other genres present in their music (PostHardcore, SouthernRock), so this classification depends largely on who you ask)
* Misery Signals
* Norma Jean
* Of Mice and Men (their third album also has prominent NuMetal elements)
* Overcast
* Parkway Drive
* Poison the Well (at first; they eventually dropped the metallic elements of their sound for a more experimental hardcore feel)
* Protest the Hero (also ProgressiveMetal)
* Psychostick
* Ringworm
* Rorschach
* Sea of Treachery
* Shadows Fall (overlaps with ThrashMetal, similar to God Forbid)
* Shai Hulud
* The Showdown (First album only; mixed with MelodicDeathMetal and DeathMetal. They eventually became a DeathMetal tinged groove/thrash band)
* Slapshock (later material)
* Starkweather (An {{Early Installment Weirdness}} for the entire subgenre, drawing influences from {{Doom Metal}}, {{Death Metal}}, {{Progressive Metal}} and {{Alternative Rock}}. Implied to be the {{Ur Example}} of the {{Soprano and Gravel}} technique for which modern Metalcore bands are known for)
* Straight Line Stitch
* Sulaco
* Today Is the Day (also carries heavy {{Grindcore}} and NoiseRock influences)
* Trap Them (mixed with crust punk)
* Music/{{Trivium}} (influences also drawn from ThrashMetal and MelodicDeathMetal for more recent albums)
* Music/{{Underoath}}
* Music/{{Unearth}}
* Walls Of Jericho
* TheWordAlive
* Xibalba (mixed with sludge metal)
* Yautja
* Music/{{Zao}} (TropeCodifier)

The following bands are often called metalcore, but are very much not metalcore. We keep this short list here because we don't want these bands put on the main metalcore list by an earnest passerby.
* [[ThreeInchesOfBlood 3 Inches of Blood]]: The confusion comes from the dual vocalists. While switching between clean, punk styled vocals and harsh, growled and screamed vocals is common in metalcore, 3 Inches of Blood is very much a thrash-power metal band with little to no similarities to metalcore outside of common thrash elements. Furthermore, while one of their vocalists does use similar screams to some metalcore bands, their other vocalist uses a [[Music/JudasPriest Halfordesque]] screech that's far more in line with thrash metal, speed metal and PowerMetal.
* TheBlackDahliaMurder: They qualified on their first demo and had noticeable elements of it on ''Miasma'' (''Unhallowed'' also had bits of it pop up from time to time, but not to any major degree), but they dropped any and all elements of it with ''Nocturnal'' in favor of aggressive, brutal death-tinged melodic death metal and never looked back.
* [=DevilDriver=]: Mixture of GrooveMetal and MelodicDeathMetal.
* FiveFingerDeathPunch: Straight-up GrooveMetal on their first album, [[ThrashMetal thrashier]] groove metal along the lines of Music/{{Pantera}}'s faster songs on the second, and a bit of both on the third. Some of their mellower songs border on {{Post-Grunge}}.
* Light This City: They mostly look like hardcore kids, and the other bands they've been in are mostly hardcore or pop punk, but the music is straight MelodicDeathMetal.
* Soul Embraced: Possibly due to being a Christian band. They started out as a straight up death metal band, but their later albums brought ProgressiveMetal and AlternativeMetal influences into the fold.
* Sylosis: The confusion comes mainly from their vocalist's screaming style, as well as their time of emergence. Musically, however, the band is ThrashMetal with some elements of DeathMetal and ProgressiveMetal.

!!Tropes Common In Metalcore:
* ChristianRock: Metalcore and PostHardcore are both filled with Christian bands for whatever reason. Most famously are Music/TheDevilWearsPrada, Music/{{Underoath}}, Music/{{Demon Hunter}}, and August Burns Red.
** NotChristianRock: They also have a bunch of this
* EnsembleDarkhorse: Despite the genre's strong hatedom, there are quite a few bands that metalheads generally respect. Converge and Chimaira are probably the most lauded, but other respected outfits include Bleeding Through, Music/TheDillingerEscapePlan, Every Time I Die, Misery Signals, Earth Crisis, Killswitch Engage, Caliban and Heaven Shall Burn. Quite a few of these still depend on who you ask, however.
** Among hardcore fans and more serious metal fans, there's a whole lot of respect for Integrity, Zao, Xibalba, Gaza, Shai Hulud, Candiria, Code Orange Kids, and other stuff of that sort.
* FanDumb: While most metalcore fans are perfectly fine, there's still at least one person on Facebook, Website/YouTube, or some other site that's going to put down people putting down the band in question - typical comments include mentions of wealth and talent or jealousy on the {{Hatedom}}'s part.
** Many of the more hardcore-influenced bands (Hatebreed, Earth Crisis, Terror, etc.) have gained the derisive label of "brocore" due to their tendency to attract dimwitted, violent thugs who seem to view shows less as places to enjoy the music and more as opportunities for starting fights.
* GatewaySeries: To extreme metal and HardcorePunk.
* HeavyMithril: Averted most of the time.
* LighterAndSofter: Than other Extreme metal genres, usually.
** Only the pop-oriented stuff that the genre has come to be associated with. Many of the more aggressive traditional metalcore groups are just as heavy, if not heavier, than most death or black metal. Take {{Converge}} for example.
* {{Hatedom}} / HateDumb: Due to its immense popularity and the fact that it is sometimes perceived as a form of modern HardcorePunk rather than Metal by metalheads, the genre has accumulated a rather large one of these.
** It can, of course, go the other way: lots of metalheads have great respect for the more overtly hardcore-influenced bands (such as Converge or Cave In), but ''really'' hate the more accessible, melodeath-influenced ones (Killswitch Engage, Bullet for My Valentine).
** Hardcore fans have even stronger views about it. Most have no problem with first-wave metalcore and newer bands that sound like it, but Killswitch Engage and their ilk are absolutely despised. Hatebreed and their ilk fare slightly better; some hardcore fans love 'em, others hate them even more than Killswitch and blame them for everything that's wrong with modern hardcore.
* MohsScaleOfRockAndMetalHardness: Usually about an 8 or 9. Occasionally dip down to a 7 (AllThatRemains does this sometimes) or very rarely go up to a 10 ({{Chimaira}} and Music/TheDillingerEscapePlan, for example). Converge and a couple of other groups sometimes go UpToEleven, but this is pretty uncommon.
* NeoclassicalPunkZydecoRockabilly: Most metalcore brings in alot of influences throughout the extreme metal scene, mainly MelodicDeathMetal, DeathMetal, BlackMetal, and ThrashMetal. Some bands bring in influences from PopPunk, ElectronicMusic, GrooveMetal, and AlternativeMetal.
** First-wave, meanwhile, often played with elements of noise rock, post-punk, free jazz, post-rock, grindcore, sludge metal, progressive rock, and whatever the hell else they felt like putting in.
* ScaryMusicianHarmlessMusic: Commonly inverted. They usually dress like an average person or androgynously, but the music is still fairly heavy metal.
* TheScrappy: Some metalheads seem to think so, but it still has a large fanbase. Don't even bring it up around hardcore fans, however. [[BerserkButton It won't end well.]]
** Even among metalcore fans, however, Asking Alexandria and Attack Attack! are near-unanimously disliked.
** First-wave band Biohazard are almost universally hated by metalheads ''and'' hardcore fans, for many reasons including, but not limited to, their usage of cheap rapping, uninspired lyrics, an aesthetic that combines every cliche in early metallic hardcore and plays it straight, and for inspiring the worst elements of the NuMetal movement. And that's just the beginning. It comes as no surprise that they haven't been talked about at all by almost ''anybody'' for over a decade.
*** Just how hated are they? The United States (their homeland, mind you) was the ''sole'' country that their January 2012 comeback album was not released in, and over 2 years later, a U.S. release date ''still'' hasn't been announced because demand was so low.
** Most of the post-hardcore/emo influenced bands (Memphis May Fire, Escape the Fate, etc.) tend to get more hate than others.
* SopranoAndGravel: Most bands have this. This unfortunately causes people to assume any metal band that uses this dynamic is metalcore. Melodic Death Metal (and even regular death metal in some cases) are the usual victims of this.
* SurprisinglyGentleSong: Almost every band on this page will have at least one of these per album. The first-wave acts and bands that sound like them usually have something post-rock-influenced, while the melodic acts usually have a PowerBallad.
* {{Wangst}}: Occasionally


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