Groezrock was een jaarlijks muziekfestival met punkbands, hardcorebands en metalcorebands dat sinds 1992 wordt georganiseerd op de laatste zaterdag van april in het Belgische Meerhout-Gestel. Van een klein festival met 400 bezoekers is het uitgegroeid tot een festival met ±35000 bezoekers uit heel Europa.
Omdat steeds meer mensen gingen kamperen in de omgeving van het festivalterrein is er sinds 1998 een camping. Sinds 2003 zijn er twee podia, het tweede podium Back-to-basics is voor de hardcore-georiënteerde bands. In 2006 duurde het festival voor het eerst twee dagen, dit in verband met de viering van het vijftienjarig bestaan van het festival. In 2009 waren er voor het eerst 3 podia op Groezrock. Vanaf 2011 duurde het festival 2 volledige dagen wegens hun 20-jarig bestaan. De editie in 2018 ging niet door omdat het festival te groot werd voor de vrijwillige organisatie. Er werd besloten kleinschaliger te opereren. De editie in 2019 trok minder publiek dan gehoopt, waarna ook de editie van 2020 niet doorging.
1992–2002 1992: Grandma's Toy, Buckle Juice, Dinky Toys, Pitti Polak 1993: Give Buzze, The Establishment, Ashbury Faith, The Scabs 1994: One Hes, Inna Nip, Rusk, Groggy's Crawl, Thermos, Burma Shave, Metal Molly, Jack of Hearts, Soapstone, B.J. Scott 1995: Oxid, Cesspool, Quip, Dildo Warheads, Mutilated, Deeper, Brotherhood Foundation, L.A. Doors 1996: Small Yellow Fish, Protest, Underdog!?, Cooper, Def Real, The Romans, Brotherhood Foundation, Deviate 1997: Ryker's, Heideroosjes, Brotherhood Foundation, Gwyllions, Instructions For Use, Igor's Record Shop, Cornflames, Flee Bag 1998: Millencolin, Good Riddance, Intensity, AFI, Hard Resistance, Undeclinable Ambuscade, Pancake, Instructions for Use, Sixpack Joe, Cooperate, Plan 9 1999: No Fun At All, Ten Foot Pole, 59 Times the Pain, Good Riddance, 88 Fingers Louie, Buck Wild, Bombshell Rocks, Void Section, Janez Detd., 2 Late, Access Denied, Nevergreen, PN 2000: No Fun At All, Heideroosjes, Down by Law, Liberator, The Bouncing Souls, Within Reach, Facedown, Vision, 5 Days Off, I Against I, Skin of Tears, Apeshit, Delate, Figure It Out 2001: Square One, Buckle Up, Powerhouse, Deviates, Venerea, Burning Heads, Adhesive, Stoned, Randy, Undeclinable, 59 Times the Pain, Snuff, SNFU, Ignite, Voodoo Glow Skulls 2002: Bad Religion, Sick of It All, Guttermouth, Down by Law, Satanic Surfers, Circle, .Calibre, Kill Your Idols, Horace Pinker, Flatcat
2003 Voor het eerst waren er twee podia. Hoofdpodium: Dropkick Murphys, Biohazard, Glassjaw, Ten Foot Pole, Hot Water Music, The Donots, Flogging Molly, Gameface, Randy, The Shandon, Face Tomorrow, Skool's Out B2B: Severance, Between the Lines, Support, Terror, Caliban, Give Up the Ghost, Stairland, Poison the Well
2004 Hoofdpodium: Millencolin, Sick of It All, Heideroosjes, Mad Caddies, Madball, Pulley, Strung Out, Ten Foot Pole, Midtown, The Almighty Trigger Happy, Travoltas, Belvedere, Beatsteaks B2B: E.Town Concrete, Stretch Arm Strong, Liar, The Bronx, The Promise, Cornflames, Rise and Fall, Champion
2005 Hoofdpodium: Lagwagon, Hatebreed, Mad Caddies, Flogging Molly, 7 Seconds, boysetsfire, Rise against, Tsunami Bomb, Strike Anywhere, Only Crime, Capdown, Pepper, SFP B2B: Coheed and Cambria, Ringwörm, Hopesfall, Alexisonfire, Street Dogs, From Autumn To Ashes, Modern Life Is War, Maroon, The Setup, Malkovich
2006 In 2006 was het voor het eerst dat het festival twee dagen duurde. Vrijdag: Taking Back Sunday, Thrice, Goldfinger, Underoath, Silverstein, Aiden, Say Anything Zaterdag (hoofdpodium): Bad Religion, Dropkick Murphys, Me First and the Gimme Gimmes, Sick of It All, Less Than Jake, No Use for a Name, Anti-Flag, Death By Stereo, The Lawrence Arms, Peter Pan Speedrock, A Wilhelm Scream, Latterman Zaterdag (B2B): Path of Resistance, All Out War, Born from Pain, Comeback Kid, Raised Fist, Himsa, Bold, The Maple Room, Officer Jones & HPCP, The Spirit That Guides Us, The Banner
2007 Vrijdag: New Found Glory, All American Rejects, Motion City Soundtrack, Stretch Arm Strong, Caliban, Saosin, Senses Fail, Enter Shikari, Gallows, Big D & The Kids Table, No Turning Back, Death By Stereo Zaterdag: Lostprophets, Jimmy Eat World, Lagwagon, Hatebreed, Strung Out, Thursday, Sparta, Tiger Army, Converge, Deadline, The Bronx, Rise Against, Cancer Bats, Ignite, The Ataris, MxPx, Aiden, Terror, Street Dogs, Mad Caddies, Hit the Lights, Death Before Disco, Full Blown Chaos
2008 Vrijdag: Billy Talent, Hot Water Music, Anti-Flag, Finch, Silverstein, The Audition, Strike Anywhere, Mayday Parade, The Blackout, Set Your Goals, All Time Low, Heaven Shall Burn Zaterdag: Bad Religion, Story Of The Year, Sick of It All, Face to Face, Agnostic Front, 59 Times The Pain, Parkway Drive, No Fun At All, The Setup, The Toasters, Horse The Band, A Wilhelm Scream, This Is Hell, The Loved Ones, Cursed, The Bones, Suicide Silence, The Flatliners, Bury Your Dead, Thursday, Do Or Die, El Guapo Stuntteam, The Planet Smashers, The Bouncing Souls
2009 Vanaf 2009 waren er voor het eerst drie podia op het festival, namelijk de Main Stage ( voorheen hoofdpodium), de EASTPAK Core Stage, en de ETNIES Back To Basics Stage (voorheen B2B).
Vrijdag 17 april Main StageEASTPAK Core StageETNIES Back To Basics StageBullet for My Valentine Taking Back Sunday Underoath MxPx Catch 22 You Me at Six Kid DownThursday Bring Me the Horizon Poison the Well Senses Fail United Nations Escape The FateAmenra P.O. Box VersaEmerge Innerpartysystem Sounds Like Violence Campus
Zaterdag 18 april Main StageEASTPAK Core StageETNIES Back To Basics StageNOFX Rise Against The Get Up Kids No Fun at All The Living End The Vandals The Academy Is... The Aquabats Street Dogs The Unseen The Flatliners Gino's EyeballWalls Of Jericho Bleeding Through Comeback Kid Mad Sin Darkest Hour First Blood The Ghost of a Thousand Architects Emery Misery Signals Bane OutbreakBackfire! Nations Afire Death before Dishonor The Sedan Vault Billy the Kill Mid Air Collision True Colors This is a Standoff Beneath the Massacre Tenement Kids Nuns Go Riot Tackleberry
2010 Vrijdag 23 april Main StageEASTPAK Core StageETNIES Back To Basics StageThe Mighty Mighty Bosstones Face to Face Glassjaw Millencolin Caliban The Real McKenzies The SwellersFuneral for a Friend Agnostic Front Alesana Haste the Day A Skylit Drive Holding onto HopeThe Friday Night Boys Banner Pilot Adept This Is Hell Young Guns Grey Like Masquerade
Zaterdag 24 april Main StageEASTPAK Core StageETNIES Back To Basics StageBad Religion Pennywise AFI Sum 41 Lit The Bouncing Souls 88 Fingers Louie Strike Anywhere Zebrahead MC Lars Pour Habit MuteStory of the Year Parkway Drive The Bronx Mustard Plug The Aggrolites Despised Icon A Wilhelm Scream Dance Gavin Dance Winds of Plague The Warriors 50 LionsH2O Good Clean Fun Born from Pain Rise and Fall Stick to Your Guns Steak Number Eight Mariachi El Bronx Defeater Static Radio In Fear and Fate Asking Alexandria
2011 Dit jaar duurde Groezrock twee volledige dagen in plaats van slechts een anderhalve dag. Het was tevens de warmste editie ooit met temperaturen tot 29 °C
Vrijdag 22 april Main StageEASTPAK Core StageETNIES Back To Basics StageFlogging Molly Hatebreed Further Seems Forever Millencolin Danko Jones Anberlin The Black Pacific Cute Is What We Aim For Rufio Craig's Brother Army of FreshmenUnderoath August Burns Red Every Time I Die Circa Survive Thursday Sick of it all The Blackout Whitechapel Twin Atlantic We Came As Romans Bleed From WithinMorning Again Devil's Brigade Shai Hulud Cancer Bats No Friends Grey Area Veara Blade The Acacia Strain Miss May I Impending Doom
Zaterdag 23 april Main StageEASTPAK Core StageETNIES Back To Basics StageNOFX Dropkick Murphys Descendents Boy Sets Fire Dashboard Confessional Thursday Goldfinger Sugarcult Piebald Streetlight Manifesto Teenage Bottlerocket Dead to MeThe Used Saves the Day Blood for Blood Madball Snapcase Comeback Kid Street Dogs Homer Asking Alexandria Old Man Markley Blacklist RoyalsH2O CIV Brotherhood Foundation No Trigger The Ghost Inside Of Mice and Men Hoods Dear Landlord Grave Maker Cruel Hand Social Suicide
2012 Zaterdag 28 april Main StageImpericon StageETNIES Back To Basics StageAcoustic StageRancid Lagwagon Face to Face Yellowcard Heideroosjes The Bouncing Souls Reel Big Fish Belvedere None More Black The Menzingers Authority Zero ChixdiggitParkway Drive Heaven Shall Burn The Dillinger Escape Plan Evergeen Terrace The Ghost Inside Miss May I For Today Royal Republic We Are The In Crowd The Copyrights Paceshifters After the BurialGallows Hazen Street Lifetime Verse Set Your Goals The Wonder Years Off With Their Heads I Am The Avalanche Confession B.E.A.R Counterpunch BanquetsGarret Klahn Face Tomorrow Dustin Kensrue Hostage Calm Vienna Yellowcard The Bouncing Souls I Am The Avalanche
Zondag 29 april Main StageImpericon StageETNIES Back To Basics StageAcoustic StageRefused Simple Plan Thrice Good Riddance Alkaline Trio Hot Water Music Motion City Soundtrack MxPx Zebrahead Billy The Kill Versus The WorldUnearth Terror Anti-Flag The Bronx Architects Your Demise The Old Firm Casuals The Dangerous Summer Make Do And Mend Wolves Like UsGorilla Biscuits 7 Seconds Slapshot DYS Such Gold Cobra Skulls Trigger Effect Sunpower Red City Radio JuniusChuck Ragan Tom Gabel Dave Hause Mike Herrera Jonah Matranga Anti-Flag Kevin Seconds
2013 Zaterdag 27 april Monster Stage (Main Stage)Impericon StageETNIES StageAcoustic StageRise Against Rocket From The Crypt Pennywise Hatebreed Frank Turner and the Sleeping Souls The Aquabats Pulley A Wilhelm Scream Streetlight Manifesto The Riverboat Gamblers Far From Finished The RocketTurbonegro Texas Is The Reason ...And You Will Know Us by the Trail of Dead Grade Emmure The Kids Samiam Joey Cape's Bad Loud Chelsea Grin Crossfaith Crushing CasparsComeback Kid Kid Dynamite Title Fight Implants Trapped Under Ice The Story So Far AC4 Obey The Brave John Coffey Six Ft Ditch Attila Buried In VeronaDave Hause Jonny Two Bags Walter Schreifels Scorpios Kristopher Roe Russ Rankin Miracles Minx
Zondag 28 april Monster Stage (Main Stage)Impericon StageETNIES StageAcoustic StageBad Religion Billy Talent The Used The Starting Line Less Than Jake Strung Out The Ataris The Flatliners Smoke or Fire The Dopamines NothingtonKillswitch Engage Bring Me the Horizon August Burns Red Sparta Attack Attack! Narrows Adept Stick to Your Guns While She Sleeps BastionsBlack Flag Into Another Strife Polar Bear Club First Blood Old Man Markley Pure Love Iron Chic Midnight Souls Masked Intruder The Front BottomsGeoff Rickly Vinnie Caruana Rocky Votolato Tim Vantol Rob Lynch Into It. Over It. PJ Bond Arizona & Grey Like Masquerade
2014 Vrijdag 2 mei Monster Stage (Main Stage)Impericon StageETNIES StageMacbeth StageNOFX Brand New Descendents Alkaline Trio Ignite The Lawrence Arms The Menzingers Bodyjar Gameface Atlas Losing Grip AstpaiQuicksand Taking Back Sunday boysetsfire Madball Terror Saves The Day The Wonder Years Bayside Wisdom in Chains Devil in MeH2O Paint It Black La Dispute Iron Chic I Am The Avalanche Deez Nuts Red City Radio PUP RestorationsEverlast Larry And His Flask Tim Barry INVSN Chunk! No, Captain Kids Insane My Extraordinary Fathoms Still Bust The Tramps
Zaterdag 3 mei Monster Stage (Main Stage)Impericon StageETNIES StageMacbeth StageThe Offspring The Hives New Found Glory Screeching Weasel All Snuff Funeral Dress The Casualties The Smith Street Band Elway Get DeadFalling In Reverse Caliban The Devil Wears Prada The Ghost Inside Norma Jean Doomriders I Killed The Prom Queen Apologies, I Have None Drug Church The Charm The FuryJudge Modern Life Is War Cro-Mags Touche Amore Liferuiner The Setup Done Dying Fabulous Disaster The PriceduifkesThe Toasters Crazy Arm Bim Skala Bim Bury Tomorrow Blitz Kids Edward In Venice Shell Beach River Jumpers Moments The Ignored
2015 Vrijdag 1 mei