Most Appearances (Performer)
| Name | Role(s) | # |
|---|---|---|
| 587. Robert Hurst | Bass | 1 |
| 587. Robert Johnson | Drums | 1 |
| 587. Robert Kearns | Bass | 1 |
| 587. Robert Plant and Alison Krauss | Featured Artist | 1 |
| 587. Robert Stillman | Saxophone | 1 |
| 587. Robert Taylor | Drums | 1 |
| 587. Roberta Leono | Tambor Alegre | 1 |
| 587. Roberto Fonseca | Piano | 1 |
| 587. Roberto Lange | Guitar, Vocals | 1 |
| 587. Roberto Lorenzo | Trombone | 1 |
| 587. Roberto Verástegui | Arrangements, Keys, Piano | 1 |
| 587. Roberto Vizcaino Jr. | Percussion | 1 |
| 587. Roberts | Violin | 1 |
| 587. Robin Baytas | Drums | 1 |
| 587. Robin Bramlett | Bass | 1 |
| 587. Robin Dann | Vocals | 1 |
| 587. Robin MacMillan | Drums | 1 |
| 587. Robin Mullarkey | Bass, Percussion, Vocals | 1 |
| 587. Robin Olson | Featured Artist | 1 |
| 587. Robin Vining | Guitar, Vocals | 1 |
| 587. Rocco Nigro | Accordion, Audio | 1 |
| 587. Rocco Palladino | Bass | 1 |
| 587. Roddy Ricch | Keys, Vocals | 1 |
| 587. Rodney Crowell | Featured Artist | 1 |
| 587. Rodrigo Amarante | Featured Artist | 1 |