| 544. Claudia Abena | Vocals | 1 |
| 544. Claudia Acuña | Vocals | 1 |
| 544. Claudia Gonson | Vocals | 1 |
| 544. Claudia Lopez | Background Vocals | 1 |
| 544. Clay Frankel | Background Vocals, Guitar | 1 |
| 544. Clay Ostwald | Keys, Music Director | 1 |
| 544. ClayDough | Keys | 1 |
| 544. Clayton Linthicum | Guitar | 1 |
| 544. Clayton Penrose-Whitmore (Violin) | Musician | 1 |
| 544. Clem Braden | Background Vocals, Mandolin, Upright Piano | 1 |
| 544. Clem Snide with Scott Avett | Featured Artist | 1 |
| 544. Clementine Brown | Violin | 1 |
| 544. Cleon Edwards | Drums | 1 |
| 544. Clipse | Featured Artist | 1 |
| 544. Cmaze | Background Vocals | 1 |
| 544. Coastcity | Brass Arrangements, Musical Direction, Vocal Arrangements | 1 |
| 544. Coby Petricone-Berg | Alto Saxophone | 1 |
| 544. Coco Jones | Vocals | 1 |
| 544. Cody Perrin | Guitar | 1 |
| 544. Coko | Vocals | 1 |
| 544. Coldplay | Featured Artist | 1 |
| 544. Cole Berggren | Banjo, Piano | 1 |
| 544. Colin Chambers | Keys | 1 |
| 544. Colin Cook | Guitar | 1 |
| 544. Colin Creev | Guitar, Piano, Vocals | 1 |