| name | from | genre | | M.A.N | Gothenburg, Sweden | Metal | | Machinae Supremacy | Luleå, Sweden | Metal | | Machine Head | Oakland, California, USA | Thrash Metal | | Machinemade God | Germany | Hardcore | | Madball | New York, NY, US | Hardcore | | Madina Lake | Chicago, IL, US | Alternative Rock / Punk | | Malummeh | Espoo, Finland | Metalcore | | Manatark | Tallinn, Estonia | Black Metal | | Manifesto Jukebox | Finland | Hardcore | | Manitou | Karhula, Finland | Heavy Metal | | Manmade God | San Francisco, CA, US | Alternative Rock | | Manntis | Riverside, CA, US | Metalcore | | Many Machines On Nine | Sydney, Australia | Nu-Metal | | Mar De Grises | Chile | Death Metal | | Marduk | Sweden | Death Metal | | Maroon | Germany | Metalcore | | Martyr A.D. | Minneapolis, US | Metal | | Mass Hysteria | France | Rap Metal | | Mastodon | Atlanta, GA, US | Metal | | Matchbook Romance | Poughkeepsie, NY, US | Emocore | | Maylene & The Sons Of Disaster | US | Hardcore / Rock | | Means | Regina, Canada | Metalcore | | Medeia | Tampere, Finland | Metal, Hardcore | | Medication | Los Angeles, CA, US | Alternative Metal | | Megadeth | Los Angeles, CA, US | Thrash Metal | | Memento | Los Angeles, CA, US | Alternative Rock | | Mendeed | Glasgow, Scotland | Metalcore | | Mensura | Helsinki, Finland | Death / Black Metal | | Mercenary | Denmark | Metal | | Meshuggah | Umeå, Sweden | Metal | | Mest | Chicago, US | Punk Rock | | Metallica | San Francisco, CA, US | Metal | | Miami Golem | Berlin, Germany | Rock | | Mindstab | Lichtervelde, West-Flanders, Belgium | Nu-Metal | | Ministry | US | Metal | | Minus Sign | Kotka, Finland | Metalcore | | Mirzadeh | Finland | Black Metal | | Misery Inc. | Myrskylä, Finland | Metal | | Misery Index | Washington, DC, US | Death Metal | | Misery Signals | Milwaukee, WI, US | Melodic Hardcore | | Misery Speaks | Muenster, Germany | Melodic Death Metal | | Mnemic | Denmark | Industrial Metal | | Modern Life Is War | Iowa, US | Hardcore | | Mokoma | Lappeenranta, Finland | Metal | | Moments In Grace | St. Augustine, FL, US | Alternative Rock / Emo | | Moonsorrow | Finland | Folk Metal | | Moonspell | Portugal | Death Metal | | More Than A Thousand | Setubal, Portugal | Emocore | | Morning For The Masses | Baltimore, MD, US | Emocore | | Mortal Treason | Hartselle, AL, US | Death Metal | | Most Precious Blood | New York, NY, US | Hardcore | | Motograter | Santa Barbara, Ca US | Metal | | Motorhäte | Denmark | Hardcore Punk | | Mournful | Germany | Emocore | | Mudvayne | Peoria, IL, US | Nu-Metal | | Murderdolls | Des Moines, IA, US | Metal | | Mushroomhead | Cleveland, OH, US | Industrial Metal | | My American Heart | San Diego, CA, US | Alternative Rock / Emo | | My Bitter End | Middletown, NY, US | Metalcore | | My Chemical Romance | Newark, NJ, US | Rock | | My Revenge Is Red | Alcoa, TN, US | Post Hardcore | | My Son My Executioner | Dallas, TX, US | Metalcore | | Mychildren Mybride | Huntsville, AL, US | Metalcore | | Myfashionlove | Cesena, Italy | Screamo | | Myproof | Tokyo, Japan | Metalcore | | Mythological Cold Towers | Brazil | Doom Metal | | The Mad Capsule Markets | Japan | Industrial / Hardcore Punk | | The Manhattan Project | Greensboro, North Carolina, US | Hardcore | | The Maple Room | Belgium | Post Hardcore | | The Miles Between | Taunton, MA, US | Metalcore | | The Murdered | Atlanta, GA, US | Metalcore |
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