M
- Madness
- mastodon
- Meg & Dia
- Mike + The Mechanics
- The Monkees
- McFly - Danny Jones, Tom Fletcher
- Maximum The Hormone - Daisuke Tsuda, Ryo Kawakita
- The Move
- Mushroomhead - Waylon Reavis, Jeffrey Hatrix
Read more about this topic: List Of Bands With More Than One Lead Vocalist