Artists
Marilyn Manson
Alleged sexual abuse
Marina
Female empowerment
LGBTQ+ ally
Mark Knopfler
Human rights
Maroon 5
Controversial association
Harassment
Charity
LGBTQ+ ally
Marty O’Donnell
Anti-abortion
Controversial endorsements
Controversial political association
Homophobia
Intellectual property dispute
Transphobia
Marvin Gaye
Domestic violence
Anti-war
Environmental awareness
Human rights
Racial equality
Social and cultural awareness
Mary Lake
Charity
Human rights
LGBTQ+ ally
Social and cultural awareness
Massive Attack
Environmental awareness
Human rights
LGBTQ+ ally
Mastodon
Controversial statements
Mayhem
Controversial behavior
Discrimination
Extremist ties
Violence & crime
Megadeth
Controversial political association
Controversial statements
Charity
Environmental awareness
Metallica
Controversial behavior
Charity
Mgła
Extremist ties
Michael Bublé
Controversial behavior
Charity
Human rights
Physical health awareness
Michael Jackson
Alleged child sexual abuse
Controversial behavior
Charity
Environmental awareness
Human rights
Moby
Animal rights defender
Environmental awareness
Moha La Squale
Domestic violence
Emotional abuse
Physical abuse
Sexual abuse
Moonblood
Extremist ties
Offensive imagery or language
Moonsorrow
Controversial association
Controversial behavior
Offensive imagery or language
Moonspell
Controversial statements
Anti-fascist
Physical health awareness