List of bands (21):

Metalite
Metallica
Michael Schenker
Michael Schenker Group
Ministry
Miscreance
Misfire
Monstrosity
Moonspell
Morbid Saint
Morningstar
Mortemia
Motionless In White
Motörhead
Moyra
Mr. Big
My Dying Bride
Myrath
Naked Root
NamoR