Metallica is a good one to get started.
Mike's Chair
Artists
Mark Shultz
Matthew West
Michael W. Smith
Michael English
iyaz
Yaz
Moronic is an insult. It begins with the letter m.
magnums
an Olympic sport starting with m is marathon
A salad starting with the letter M could be a macaroni salad.
Moss Moon Moose Midge Mollusk
maltesers & m&ms
Mini
MakeMindMineMastMassMustMeatMeetMinkMireMadeMaidMazeMoreMood
Muscovite is a mineral. It begins with the letter m.
masala