Most Appearances (Performer)
| Name | Role(s) | # |
|---|---|---|
| 598. Romier Mendez | Bass | 1 |
| 598. Rommel Ribeiro | Guitar | 1 |
| 598. Román Diaz | Bongos, Cowbell | 1 |
| 598. Ron Allen | Bass | 1 |
| 598. Ron Carter | Bass | 1 |
| 598. Ron Gilmore | Keys, Vocals | 1 |
| 598. Ron Mael | Keyboards | 1 |
| 598. Ron Poindexter | Vocals | 1 |
| 598. Ron Tnava Avant | Keys, Vocals | 1 |
| 598. Rona Siddiqui | Keys, Music Direction | 1 |
| 598. Ronald Bruner Jr. | Drums | 1 |
| 598. Ronald Isley | Vocals | 1 |
| 598. Ronald Nazaire | Percussion | 1 |
| 598. Ronaldo Silva | Percussion | 1 |
| 598. Ronnie Heard | Sax | 1 |
| 598. Ronnie McCoury | Mandolin | 1 |
| 598. Roomful Of Teeth | Featured Artist | 1 |
| 598. Roosevelt Collier | Lap Steel Guitar | 1 |
| 598. Rosa Díaz | Featured Artist | 1 |
| 598. Rosalind Leyden | Musician | 1 |
| 598. Rosanne Cash | Guitar, Vocals | 1 |
| 598. Rose Ann Dimalanta | Keys | 1 |
| 598. Rose Droll | Keys, Piano, Vocals | 1 |
| 598. Roselyn Williams | Vocals | 1 |
| 598. Rosetta | Bass, Percussion, Vocals | 1 |