Concept-album maximalists who treated emo as opera, with marching-band drums, guitar harmonies, and a costume for every era, theatrical to the last note.
EmoTheatrical rock
Name a few bands you love and we'll scout all 140 acts on the Aftershock bill for the ones you shouldn't miss.
Aftershock is the West Coast's biggest rock festival: four October days at Discovery Park on the Sacramento riverfront, 142 bands, and a definition of "heavy" wide enough to be almost meaningless. Each night has its own personality in 2026. My Chemical Romance's theatrics on Thursday, a Friday that hands the main stage to Limp Bizkit, Wu-Tang Clan, Public Enemy, and Cypress Hill, Pierce The Veil over a deep post-hardcore reunion slate on Saturday, and Tool closing Sunday with Queens of the Stone Age, AFI, and Danny Elfman beneath them. Somewhere in the middle sit Dethklok, Buckethead, Insane Clown Posse, and a quartet of headbanging cellists, which is the whole thesis of this festival in one sentence.
Expect post-hardcore, rock, emo and metalcore across 140 acts.
Search it, filter by day, stage or genre.
Concept-album maximalists who treated emo as opera, with marching-band drums, guitar harmonies, and a costume for every era, theatrical to the last note.
EmoTheatrical rock
Nu-metal's chaos agents in their beloved victory-lap era. Fred Durst does it all for the nookie, still, and the field does it with him.
Nu-metalRap-rock
San Diego post-hardcore romantics enjoying a massive TikTok-era second act, the scene's most swooned-over comeback.
Post-hardcoreEmo
Prog-metal's cathedral builders: polyrhythms, lasers, and total audience surrender, with Danny Carey's drumming alone worth the pilgrimage.
Prog-metalAlt-metal
'My Own Worst Enemy' is one perfect song and a very good time, delivered by SoCal pros who know exactly why you came.
Alt-rock
A supergroup of MCR, Thursday, and Circa Survive members, playing urgent, veteran post-hardcore like a first band, not a side project.
Post-hardcore supergroup
'Check Yes Juliet' (MySpace-era pop-punk sunshine) and Florida warmth that never curdled, and the chorus still checks yes.
Pop-punk
Ohio emo survivors whose mid-2000s records are still the reference point for the whole scream-over-the-chorus template, played now with veterans' gratitude.
EmoPost-hardcore
Warped Tour survivors trading in the specific ache of a song you loved at sixteen, and 'Miserable at Best' still empties the tear ducts.
Pop-punkEmo
Early-2000s pop-punk with more craft than the era gave it credit for, and 'The Best of Me' is aging like a yearbook photo you actually like.
Pop-punkEmo
Classically trained Finnish cellists who started by covering Metallica and never stopped headbanging, making symphonic metal where the strings genuinely shred.
Cello metalSymphonic metal
Midwest emo's chaotic favorites bring screamed choruses, absurd song titles, real feelings, and a crowd that knows every word including the yelps.
EmoPop-punk
Spooky-kid nu-metal with detuned bounce and a goth streak the genre mostly abandoned, bringing 'Loco'-era heaviness back from the grave.
Nu-metal
Rap-rock revivalists trading verses between a singer and an MC, straight out of the 2000s playbook, with updated production and the same adrenaline.
Rap-rockAlt-metal
Bert McCracken's scream-to-croon whiplash defined a corner of early-2000s post-hardcore and still detonates live, and the chaos has aged into craft.
Post-hardcoreEmo
Radio rock that pivoted from swagger to piano ballads and kept the audience either way, from Vancouver pragmatists with hooks to spare.
Post-grunge
Lajon Witherspoon's soul-trained voice over grinding alt-metal is the reason they outlasted the scene, and they have the warmest crowd in heavy music.
Alt-metalNu-metal
Sun-bleached ska-punk-dub hybrid, now carried by Bradley Nowell's son with the songs left intact, and '40oz. to Freedom' forever.
Ska-punkReggae rock
San Antonio alt-metal showmen with bass-throwing spectacle, Grammy-nominated hooks, and a stage rig built like a science experiment.
Alt-metal
Thirty years of hooks that snuck genuine punk speed onto daytime radio without anyone noticing, and the catalog is basically all singles.
PunkSkate punk
Space-suit cinematic rock with sci-fi lore and radio-metal hooks, a full 'demonstration' rather than a mere concert.
Cinematic rock
Taylor Momsen's grunge-blooded hard rock is smoky, heavy, and chart-topping, with more rock-radio #1s than most legacy acts.
Hard rockAlternative rock
Metalcore's standard-bearers, where 'The End of Heartache' still detonates and two decades of the genre's template are played by its authors.
Metalcore
'Alive' and 'Youth of the Nation' are the calling cards of San Diego's nu-metal survivors, whose positivity stayed intact through every scene cycle.
Nu-metalReggae-rock
Sunny California hardcore that treats a circle pit as a party rather than a fight, and the scene's most reliably grinning live band.
HardcoreCrossover thrash
'What It Is to Burn'-era post-hardcore, still one of the era's most-loved single records, with a title track that remains a scene-wide scream-along.
Post-hardcoreEmo
The Faygo flies at sundown: whoop whoop, and genuinely one of music's strangest, most loyal communities gathered in one place.
HorrorcoreRap-rock
Texas hardcore at its most punishing, with mosh calls that carry a message and a low end that treats subtlety as a character flaw.
HardcoreMetalcore
OC metalcore originators bring 'Lip Gloss and Black' nostalgia with new-era polish, from a band that helped write the genre's melodic playbook in the first place.
Metalcore
B-Real's nasal snarl over DJ Muggs's murk: the group that made stoner rap a genre with a flag, 'Insane in the Brain' still a jump-along ritual.
Hip-hopRap-rock
Memphis's murk-and-menace originators, whose tape-hiss production is now the foundation of half of underground rap, and Oscar winners, improbably.
HorrorcoreCrunk
Gothic-horror black metal with orchestration, shrieks, and a theatrical streak a mile wide: extreme metal's most committed haunted-house act.
Symphonic black metal
Chuck D's baritone over air-raid production, protest music that has never needed updating, with Flavor Flav as eternal hype engine.
Political hip-hop
Canada's post-hardcore heart: three voices trading scream, croon, and rasp across one beloved catalog, with reunion sets that feel like national holidays back home.
Post-hardcore
Alex Terrible's subterranean roar over deathcore built like siege machinery, as much spectacle as band, and heavier than both.
Metal
'They're Only Chasing Safety' to now, metalcore's restless innovators, reinventing loudly in every era, and the reinventions keep landing.
MetalcorePost-hardcore
Nine MCs over dusty kung-fu-flick soul loops, still the most-imitated blueprint in rap, with '36 Chambers' eternal.
Hip-hopEast coast rap
A solo billing built entirely around two decades of nu-metal and groove-metal frontman work, with Mudvayne intensity and HELLYEAH swagger in one set.
Nu-metalGroove metal
Swiss beatdown with a genuinely unsettling vocal performance sitting on top of the chug, and Europe's heaviest recent export.
DeathcoreBeatdown
Grimy, Memphis-indebted rap about self-destruction, built into one of the largest underground followings in music, where G59 loyalty runs religious.
Underground hip-hopTrap metal
Sci-fi concept-rock saga with arena hooks: 'Welcome Home' indeed, the Amory Wars mythology powering some of modern prog's biggest singalongs.
Prog-rockPost-hardcore
Metalocalypse's cartoon death-metal band, real and devastating live, with Brendon Small's shred played against the animation at brutal volume.
Melodic death metal
Theatrical pop-rock with orchestral flourishes and a frontman who can genuinely belt, bringing Broadway instincts at Warped velocity.
Pop-rockPop-punk
Pop-punk that grew up in public, with suburban specifics rendered in novelistic detail and Dan Campbell narrating adulthood in real time.
Pop-punkEmo
Craig Owens's theatrical post-hardcore, reunited: MySpace-era drama with real stakes, piano flourishes and that unmistakable swooping vocal intact.
Post-hardcoreScreamo
'Full Collapse' pioneers who were the bridge between hardcore and emo, still vital, with Geoff Rickly's yelp intact.
Post-hardcoreEmo
Clean-chorus metalcore engineered for the big room, with breakdowns placed exactly where you want them. Ocala precision, radio ambition.
Metalcore
Savannah sludge-psych institution (dual drummers, buzzsaw riffs, and swirling psychedelia) returned from a long hiatus with the heaviness intact.
Sludge metalPsych metal
Kellin Quinn's falsetto-fronted post-hardcore: Warped Tour royalty matured, with the high notes fully intact and scene-era devotion still filling rooms.
Post-hardcorePop-punk
Narrative post-hardcore delivered closer to recitation than singing, and devastating for it, with short stories screamed at full band volume.
Post-hardcoreSpoken word
North Carolina crossover veterans who moved from hardcore into thick Southern sludge and stayed there, with Sabbath swing filtered through a punk's impatience.
Sludge metalCrossover thrash
A band whose survival story is inseparable from the music's insistence on pushing forward, with melodic hardcore as literal testament.
MetalcoreMelodic hardcore
Modern pop-punk standard-bearers, gruff, fast, and beloved, with Walnut Creek's chip-on-shoulder anthems in full stride, pits and singalongs in equal measure.
Pop-punk
Anthony Green's art-punk flagship, reunited, soaring, strange, and beloved, with a fanbase that treats these songs as sacred text.
Post-hardcoreProg-rock
J-pop choreography welded to genuine power-metal chops, a premise that should not work and completely does, now with arena-scale production and a decade of converted skeptics.
Kawaii metalJ-pop
NOLA sludge supergroup with Phil Anselmo fronting molasses-slow riffs built for a room with no air conditioning, swamp-heavy doom from scene royalty.
Sludge metalDoom
The pop-punk/metalcore hybrid blueprint, with mosh-call breakdowns and sugar-rush hooks in equal measure, delivered with beach balls, confetti cannons, and total arena confidence.
MetalcorePop-punk
Zakk Wylde's biker-metal brotherhood has pinch harmonics for days, Sabbath-weight riffs, and guitar solos treated as main events.
Heavy metal
Zakk Wylde playing Sabbath songs with reverence and absurd volume, a tribute act with a guitar hero attached, pinch harmonics included.
Doom metalHard rock
Bluesy, scuffed-up rock delivered with a chip on the shoulder and a genuine gift for a chorus, with grit and hooks at festival scale.
Blues rockAlt-rock
Hardcore kids who became goths and then a genuinely huge rock band, with Davey Havok's full-commitment melodrama riding a catalog that runs from East Bay punk to 'Miss Murder'-era anthems.
Horror punkPost-hardcore
Max and Iggor performing Sepultura's 'Roots' in full: Brazilian metal history live, from the brothers who wrote it.
ThrashDeath metal
Masked, anonymous British rock outfit fronted by a figure styled as The President, pairing heavy riffs with soaring, pop-minded choruses.
Rock
Grunge-era hitmakers with a glam streak their peers were too earnest to attempt: 'Plush' through 'Interstate Love Song', hooks for days.
GrungeAlt-rock
Mid-2000s screamo whose most famous alumnus left to become a dubstep producer, with 'Dear Diary' drama that still hits the scene's pleasure centers.
Post-hardcoreScreamo
Venice crossover legends with 'Institutionalized' and a pit that never ages, and Cyco Mike still leading the charge.
Crossover thrash
Oingo Boingo's madman turned Tim Burton's composer, in a berserk orchestral-rock spectacle that mashes film scores into art-punk chaos.
Film scoreArt-rock
Seattle's funk-flecked pop-metalcore puts groove first and breakdowns second, with falsetto hooks the scene didn't see coming.
Pop-metalcore
Josh Homme's robot-boogie riffs: heavy music with a lounge singer's sense of swing and menace, desert-rock royalty at full strut.
Desert rockAlt-rock
Ice-T fronting a thrash band with the same bluntness he brought to rap, where the point has never been subtle.
Rap metalCrossover thrash
New-generation alt-metal built on a soulful clean vocal and a very modern low end, and the format's next arena act in waiting.
Alt-metalPost-hardcore
Swancore's funk-flecked flagship (technicolor riffs and dual-vocal whiplash) with a prolific catalog that never stopped mutating.
SwancorePost-hardcore
Twinkly, self-lacerating emo about mental health, sung like it's being confessed rather than performed: catharsis with a Nashville accent.
Alternative
Downtuned riffs and half-rapped menace from nu-metal's major-label boom years, running in fits and starts until the band finally called it quits in 2015.
Rock
Rock
Alternative
Hard rock
Masked, Spanish-language deathgrind long assembled from members of other well-known metal bands, with cartel imagery and blunt political satire at grindcore speed.
Metal
Nashville band whose orchestral hard rock pairs strings with crushing guitars, the sound set by their 2006 debut 'End of Silence'.
Christian rock
Phoenix metalcore fronted by Telle Smith, alternating clean choruses with breakdowns and drifting toward electronics as the years pass.
Rock
Texas alt-metal band out of the turn-of-the-millennium nu-metal boom, done by 2003, with a short, loud run of heavy riffs and shouted-to-sung dynamics.
Rock
Canadian alt-rock with a knack for a slinky, unexpected groove under the radio singles, and 'Paralyzer' the funkiest thing rock radio played that decade.
Alt-rockPost-grunge
Leeds band working the melodic end of metalcore, with big clean choruses set against screamed verses, polished, radio-sized heaviness with a post-hardcore heart.
Metal
New Jersey nu-metal survivors who built their sound on Latin percussion and layered rhythm, groove-first and heavier than the era's radio fare.
Hard rock
San Antonio nu-metal outfit whose brief early-2000s run produced 'Turn Me On "Mr. Deadman"', with industrial-tinted riffs and radio menace.
Rock
Welsh post-hardcore romantics with soaring, heart-first heaviness, every chorus written to be wept through, Cardiff sincerity at full wingspan.
Post-hardcoreAlternative rock
Nu-metal revivalists working bouncing downtuned riffs and rapped verses, with a playful streak that suits the name.
Metal
Hip-hop
Pennsylvania technical death metal band who folded saxophone into the blast beats and made it feel inevitable rather than gimmicky, heavy music with a jazz lung.
Metal
Forever attached to one enormous song, and entirely comfortable with that. 'Bodies' still detonates, and the rest of the set hits harder than expected.
Nu metalHard rock
Scranton, Pennsylvania six-piece that has fused groove metal, melodic death metal and metalcore since 2016, and won Danny Wimmer Presents' 2026 Battle for the Big Stage unsigned-band contest.
Groove metalMetalcore
Long-running Arizona outfit led by the Nicoli sisters, pairing clean melodic vocals against screamed counterpoint, with mid-2000s post-hardcore still in motion.
Rock
Boston hardcore named for the city's 617 area code and fronted by Austin Sparkman, carrying the local pit-first tradition from a 2024 debut on DAZE to a 2026 album on Roadrunner.
Hardcore
Slam played with a hip-hop swagger: gurgles, gore, and breakdowns tuned to the floor, the internet's favorite new heaviness.
Metal
Berlin band active since 2014, setting metalcore breakdowns against the syncopated, low-tuned riffing of djent.
Metal
Literary-concept screamo out of Raleigh, with dual vocals, Poe-inspired storylines, and no interest whatsoever in restraint, beloved by everyone who owned a studded belt in 2008.
Post-hardcoreScreamo
Florida beatdown with no interest in subtlety, where grief and rage are compressed into two-minute assaults, as heavy emotionally as it is sonically.
Metal
Self-described humorcore: deadpan songs about beer, food and workplace misery, played with enough genuine heaviness that the joke never undercuts the riffs.
Metal
Melodic death metal about goblins, performed with a technical seriousness that makes the joke land harder, and a dancing goblin mascot is included.
Metal
New Jersey post-hardcore that got angrier and more political as it aged, not softer, with Buddy Nielsen leading with total candor.
Post-hardcoreEmo
Melodic death metal played with a fan's enthusiasm, carrying on after the loss of their frontman, with the songbook honored nightly.
Melodic death metal

Alternative
Washington trio who made finger-tapped chaos and lurching time signatures into something catchy, with Thomas Erak's guitar as lead instrument and wrecking ball.
Rock
The original Of Mice & Men vocalist returning to the material after years away from touring, a scene-history moment for everyone who wore out those first records.
MetalcorePost-hardcore
Alabama metalcore turned mean, with melodic roots swapped for something nu-metal-adjacent, and the heaviness pays for the trade.
Metal
'The Question'-era screamo-pop veterans who are still swinging, with dueling vocals and dynamic whiplash from one of the scene's smartest bands.
Post-hardcore
Alternative
Vegas post-hardcore that survived a frontman swap and a decade of scene churn intact, with arena-scene hooks and a survivor's stubbornness.
Post-hardcore
Melodic hardcore with a conscience: sermons about solidarity delivered at full sprint, with Orange County conviction two decades deep.
Metal
Metalcore with 8-bit keyboard leads, the band that made 'Nintendocore' an actual thing people argue about, chaotic and funnier live than seems possible.
MathcoreNintendocore
Clean-and-scream metalcore from the Rise Records boom, played with more muscle than nostalgia by Phoenix scene veterans who kept the choruses enormous.
MetalcorePost-hardcore
Nashville rapper with a rock streak and a fiercely independent release history, and melodic grit built entirely outside the label system.
Hip-hopRap-rock
A concept record about being dead, delivered with more atmosphere than its scene usually allowed. 'What to Do When You Are Dead' remains a mid-2000s emo cult document.
EmoAlt-rock
Punishingly slow, tuned-into-the-floor heaviness with Vincent Bennett's misanthropy on top: doom tempos, hardcore intent, heaviness as a moral position.
DeathcoreMetallic hardcore
Metalcore that kept getting darker and more atmospheric long after their scene peers stopped trying, the rare legacy act still improving.
Metalcore
Proto-doom lifers whose long-delayed recognition arrived decades after the riffs did, and who are still summoning the '70s dark.
Doom metal
The Anthony Green-fronted EP is the stuff of scene legend and the live show still leans on it, with 'Seven Years' guaranteed to level the tent.
Post-hardcore
Early djent architects out of Minneapolis, with eight-string polyrhythms and huge grooves whose low end still lands harder live than any recording has managed to capture.
DjentProgressive metalcore
Forty years of deliberately difficult, punishingly slow riffs, and the band Nirvana learned from, still outweirding everyone downstream.
Sludge metalNoise rock
Melodic hardcore at its most emotionally scoured, with Brendan Murphy's voice permanently at the edge, and a Canadian scene institution because of it.
Melodic hardcore
Pennsylvania hard rock band bound up with the skate-video world that broke them, with sludgy riffs, deadpan menace and '96 Quite Bitter Beings' still doing the heavy lifting.
Hard rock
Crunk-screamo maximalism: the most 2008 band that has ever existed, affectionately, MySpace chaos preserved in amber and played loud.
Alternative
Rock
'Possum Kingdom' is Texas alt-rock's eternal dark ride, still promising to be your angel nightly, Texas gothic in radio form.
Alt-rock
Fat Mike's genre-agnostic side project: punk, rap, and folk stitched into something genuinely odd, with Ceschi's rapid-fire verses at the center.
PunkHip-hop
Post-hardcore turned silk-smooth pop-rock, with one of the scene's most distinctive clean vocals: a reinvention so complete the back catalog sounds like another band.
Post-hardcorePop-rock
Page Hamilton's precision-machined downstrokes powered the band a generation of nu-metal quietly ripped off, and they're still tighter than all of them.
Alt-metalPost-hardcore
Sacramento's own late-'90s radio rock, playing a hometown crowd that remembers every word, with 'Why I'm Here' loudest of all.
Post-grungeAlt-rock
Las Vegas sisters Jyl and Jules Wylde, who graduated from casino cover sets to theatrical metalcore laced with dark pop hooks.
MetalcoreDark pop
Mid-2000s Colorado post-hardcore band who ran synths and electronics through screamo at the peak of that scene, and who are back on stages after years of silence.
Rock
NYHC founders whose 'Age of Quarrel' remains the crossover blueprint: hardcore fury and metal precision fused before the terms had settled.
HardcoreCrossover thrash
A KFC bucket, a white mask, and some of the fastest and strangest guitar playing anyone has committed to tape.
ExperimentalShred
One of the bands that defined electronicore, welding trance synths and dance drops to post-hardcore, maximalist and unapologetically melodic.
Rock
'Hey Man Nice Shot' is the hit, and Richard Patrick's industrial-rock sneer is intact, with machine-tooled riffs from NIN's family tree.
Industrial-rockAlt-rock
Rock
Party thrash played at a ludicrous clip: beer, gore, and songs that rarely reach two minutes, with crowd-surfing quotas to meet.
Crossover thrash
A drummer-vocalist fronting frantic, jazz-inflected post-hardcore that changes direction every eight bars, Chico's contribution to the Swancore canon.
Rock
Max Cavalera's post-Sepultura vehicle, still fusing tribal percussion with pure groove-metal weight, with three decades of roar undiminished.
Groove metalNu-metal
Toronto artist who moved from rap features into full pop-punk, and sounds more at home there, with emo-rap roots showing through the power chords.
Alternative
My Chemical Romance, The Offspring, Sublime, The Used, The Pretty Reckless, Hot Mulligan + 28 more
Limp Bizkit, $UICIDEBOY$, Wu-Tang Clan, Public Enemy, Cypress Hill, Slaughter To Prevail + 30 more
Pierce The Veil, A Day To Remember, BABYMETAL, Circa Survive, The Story So Far, Sleeping with Sirens + 30 more
Tool, Queens of the Stone Age, Danny Elfman, AFI, Stone Temple Pilots, Dance Gavin Dance + 28 more
October 1–4, 2026 (Thursday through Sunday).
Discovery Park in Sacramento, California, where the American and Sacramento rivers meet.
My Chemical Romance (Thursday), Limp Bizkit (Friday), Pierce The Veil (Saturday), and Tool (Sunday).
142 announced acts across four days.
Every act's day is already on this page: expand the full lineup below or check the day-by-day breakdown. Stage times usually land closer to the festival.
Tell the finder at the top of this page a few bands you love, and it'll match you with your must-see sets, with reasons why.
Aftershock is expected back in October 2027; the festival has not announced the 2027 dates yet. The 2026 lineup stays on this page until it does.
Festivals in October 2026Music festivals in CaliforniaMore Metal festivalsMore Hardcore festivalsMore Rock festivalsFull festival calendar