| 554. Casper Hughes | Electric Guitar, Vocals | 1 |
| 554. Cass McCombs | Guitar, Keys, Vocals | 1 |
| 554. Cassie Kinoshi | Vocals | 1 |
| 554. Cassondra James Kellam | Vocals | 1 |
| 554. Cat Power | Featured Artist | 1 |
| 554. Cate Le Bon | Featured Artist | 1 |
| 554. Caterina Finocchi | Vocals | 1 |
| 554. Catherine "Cathia" Ochoa | Background Vocals | 1 |
| 554. Catherine Ochoa | Background Vocals | 1 |
| 554. Catherine Russell | Vocals | 1 |
| 554. Catrin Vincent | Piano, Vocals | 1 |
| 554. Cautious Clay | Featured Artist | 1 |
| 554. Caveman | Featured Artist | 1 |
| 554. CeCe Dunn | Background Vocals | 1 |
| 554. CeCe Winans | Vocals | 1 |
| 554. Cecily Bumbray | Background Vocals | 1 |
| 554. Cecily Eno | Vocal Arrangement On “Bells”, Vocalist | 1 |
| 554. Cedric Martel | Bass | 1 |
| 554. Celaya Kirchner | Violin | 1 |
| 554. Celisse Henderson | Guitar, Vocals | 1 |
| 554. Cenovia Cummins | Violin | 1 |
| 554. Cesar Galvez | Flamenco Guitar | 1 |
| 554. Cesar Quevedo Barrero | Bass | 1 |
| 554. Cesar Rosas | Guitar, Vocals | 1 |
| 554. Cha Wa | Featured Artist | 1 |