Demence has had 1 concert.

Demence is most often considered to be Rockabilly, Psychobilly, Horror Punk, and Deathgrass.

The last Demence concert was on June 23, 2016 at Montebello Marina in Montebello, Quebec, Canada. The bands that performed were: blink-182 / Rise Against / Jane's Addiction / Ice Cube / A Day to Remember / Bring Me The Horizon / Korn / Limp Bizkit / Billy Talent / Puscifer / At the Drive-In / Lamb of God / Twisted Sister / Sum 41 / NOFX / The Used / Anthrax / Underoath / FLAG / Turbonegro / Lagwagon / Millencolin / Against Me! / Sepultura / Cradle of Filth / Sodom / Cannibal Corpse / Max and Igor Return To Roots / D.R.I. / Corrosion Of Conformity / Dead Kennedys / The Adicts / Steve Ignorant / Misfits / Travis Barker / Strung Out / Korpiklaani / The Black Dahlia Murder / Insane Clown Posse / Cokie the Clown / Streetlight Manifesto / Guttermouth / Leftover Crack / Wizo / GG Allin / Vulgaris Machins / Grimskunk / Mononc' Serge / Despised Icon / The Sainte Catherines / Ludvig Von 88 / Les Ramoneurs de menhirs / The Casualties / Choke / Jughead's Revenge / Poison the Well / Madball / Agnostic Front / Integrity / Zao / Bury Your Dead / Unearth / Mustard Plug / The Toasters / Assorted Jelly Beans / Authority Zero / The Creepshow / Venerea / No Use For A Name / D.O.A. / Silverstein / Hawthorne Heights / Atari Teenage Riot / Voivod / Anonymus / Gorguts / The Faceless / Born of Osiris / The Acacia Strain / Miss May I / Quebec Redneck Bluegrass Project / Bob Bissonnette / WD-40 / Yelo Molo / B.A.R.F / Kermess / Comeback Kid / Stick To Your Guns / Stray from the Path / Expire / Lionheart / Blood For Blood / Obey The Brave / Ghoulunatics / Beneath The Massacre / Dead Tired / Borrowed Time / King Parrot / Child Bite / SWMRS / The Brains / Days N Daze / The Beatdown Meets Hugo Mudie / The Nils / Suicide Girls / The Neverminds / Berurier Noir / Les Colocs / Raid / Demence / Normand L'Amour / Poudy & Chabot / Mario Rock / Insurrection / Mass Murder Messiah / Urban Aliens / Stop / La Tuque Bleue / Les Chiens Sales / Axel Roof / Mike Ward / Spacemaker / Lost Love / The Horny Bitches / Life On Trial / Blackvoid / The Dirty Nil.