| 583. Cicely Cotton | Piano, Saxophone, Vocals | 1 |
| 583. Cigarettes After Sex | Featured Artist | 1 |
| 583. Cimafunk | Vocals | 1 |
| 583. Cinder Well | Featured Artist | 1 |
| 583. Cinya Khan | Vocals | 1 |
| 583. Circuit des Yeux | Featured Artist | 1 |
| 583. Cisco Swank | Keys, Vocals | 1 |
| 583. Claire Miller | Vocals | 1 |
| 583. Clara Kim | Violin | 1 |
| 583. Clarence "Klueworld" Lewis IV | Drums, Music Director | 1 |
| 583. Clarice Jensen | Artistic Director, Cello, Vocals | 1 |
| 583. Clark Sims | Bass | 1 |
| 583. Clarke Randolph | Violin | 1 |
| 583. Claudia Abena | Vocals | 1 |
| 583. Claudia Acuña | Vocals | 1 |
| 583. Claudia Gonson | Vocals | 1 |
| 583. Claudia Lopez | Background Vocals | 1 |
| 583. Clay Frankel | Background Vocals, Guitar | 1 |
| 583. Clay Ostwald | Keys, Music Director | 1 |
| 583. ClayDough | Keys | 1 |
| 583. Clayton Linthicum | Guitar | 1 |
| 583. Clayton Penrose-Whitmore | Fiddle | 1 |
| 583. Clayton Penrose-Whitmore (Violin) | Musician | 1 |
| 583. Clem Braden | Background Vocals, Mandolin, Upright Piano | 1 |
| 583. Clem Snide with Scott Avett | Featured Artist | 1 |