Most Appearances (Performer)
| Name | Role(s) | # |
|---|---|---|
| 574. Ronald Nazaire | Percussion | 1 |
| 574. Ronaldo Silva | Percussion | 1 |
| 574. Ronnie Heard | Sax | 1 |
| 574. Ronnie McCoury | Mandolin | 1 |
| 574. Roomful Of Teeth | Featured Artist | 1 |
| 574. Roosevelt Collier | Lap Steel Guitar | 1 |
| 574. Rosa Díaz | Featured Artist | 1 |
| 574. Rosalind Leyden | Musician | 1 |
| 574. Rosanne Cash | Guitar, Vocals | 1 |
| 574. Rose Ann Dimalanta | Keys | 1 |
| 574. Rose Droll | Keys, Piano, Vocals | 1 |
| 574. Roselyn Williams | Vocals | 1 |
| 574. Rosetta | Bass, Percussion, Vocals | 1 |
| 574. Rosie Tucker | Acoustic Guitar, Vocals | 1 |
| 574. Ross Craib | Drums | 1 |
| 574. Ross McReynolds | Drums | 1 |
| 574. Rostam | Featured Artist | 1 |
| 574. Rostam Batmanglij | Guitar, Harmonica, Vocals | 1 |
| 574. Roy Ayers | Musician | 1 |
| 574. Roy Dyshon Warren | Choir | 1 |
| 574. Roy Pattern, Jr. | Vocals | 1 |
| 574. Royal Masat | Background Vocals, Bass | 1 |
| 574. Royal Thunder | Featured Artist | 1 |
| 574. Ruban Nielson | Guitar, Vocals | 1 |
| 574. Rubblebucket | Featured Artist | 1 |