| 554. Marty Stuart and His Fabulous Superlatives | Featured Artist | 1 |
| 554. MartÃn Cardozo | Vocals | 1 |
| 554. MartÃn Leiton | Backing Vocals, Bass, Guitarrón, Leona | 1 |
| 554. Marvill Martin (Violinist) | Musician | 1 |
| 554. Marvin "Mickso" Deschamps | Vocals | 1 |
| 554. Marvin Dolly | Guitar | 1 |
| 554. Marvin Sapp | Featured Artist | 1 |
| 554. Mary Halvorson Quintet | Featured Artist | 1 |
| 554. Mary Voutsas | Piano | 1 |
| 554. Marza Merophi Wilks | Cello | 1 |
| 554. MarÃa Angélica Valencia Sanchez | Percussion, Saxophone | 1 |
| 554. MarÃa José Llergo | Featured Artist | 1 |
| 554. MarÃa José Llergo Sanchez | Vocals | 1 |
| 554. MarÃa Rubio | Vocals | 1 |
| 554. MarÃa Zardoya | Vocals | 1 |
| 554. Masego | Saxophone, Vocals | 1 |
| 554. Maseo | DJ, Vocals | 1 |
| 554. Mashrou' Leila | Featured Artist | 1 |
| 554. Masta Ace | Featured Artist | 1 |
| 554. Masta Just | Audio, Vocals | 1 |
| 554. Mat Davidson | Pedal Steel, Vocals, Wurlitzer | 1 |
| 554. Mateo Morales | Tambor Alegre | 1 |
| 554. Mates of State | Featured Artist | 1 |
| 554. Matheus Fonseca | Background Vocals | 1 |
| 554. Mathias Kunzli | Percussion | 1 |