| 574. Maria Reis | Background Vocals, Keys | 1 |
| 574. Maria Taylor | Featured Artist | 1 |
| 574. Maria Telesheva | Accordion | 1 |
| 574. Maria Volonte | Featured Artist | 1 |
| 574. Mariachi El Bronx | Featured Artist | 1 |
| 574. Mariachi Flor De Toloache | Featured Artist | 1 |
| 574. Mariah Meshae | Background Vocals | 1 |
| 574. Marian Li-Pino | Drums | 1 |
| 574. Marian McLaughlin NPR | Featured Artist | 1 |
| 574. Marianne Khattar | Vocals | 1 |
| 574. Marie Bérard | Violin | 1 |
| 574. Marie Ulven | Guitar, Vocals | 1 |
| 574. Mariella Price | Vocals | 1 |
| 574. Marika Clark | Vocals | 1 |
| 574. Marilena Umuhoza Delli | Spokesperson, Translator | 1 |
| 574. Marina Albero | Keys, Soundscape | 1 |
| 574. Marina Arrufat | Strings | 1 |
| 574. Marina Carmona | Vocals | 1 |
| 574. Mario Callender | Keys | 1 |
| 574. Mario Castro | Keyboards, Tenor Sax | 1 |
| 574. Mario Gabriel Mesa Meriño "Machete" | Percussion | 1 |
| 574. Mariola Orellana | Vocals | 1 |
| 574. Marisa Anderson | Featured Artist | 1 |
| 574. Marit Schmidt | Viola, Vocals | 1 |
| 574. Mariza Scotch | Vocals | 1 |