| 541. Rio Mira | Featured Artist | 1 |
| 541. Rising Appalachia | Featured Artist | 1 |
| 541. Rita Payés | Arranging, Composing, Guitar, Lead Vocals, Trombone | 1 |
| 541. Ritchie | Drums | 1 |
| 541. River Tiber | Bass, Drums, Keys, Piano, Trombone, Vocals | 1 |
| 541. River Whyless | Featured Artist | 1 |
| 541. Rivers Cuomo | Guitar, Lead Vocals | 1 |
| 541. Rivka Ravede | Background Vocals, Electronics | 1 |
| 541. Rob Collazo | Bass | 1 |
| 541. Rob Gueringer | Guitar | 1 |
| 541. Rob McCoury | Banjo | 1 |
| 541. Rob Moose | Violin | 1 |
| 541. Rob Pemberton | Bass, Piano, Vocals | 1 |
| 541. Rob Smoughton | Backing Vocals, Guitar | 1 |
| 541. Rob Stone | Background Vocals, Percussion, Saxophone | 1 |
| 541. Rob Trujillo | Musical Director | 1 |
| 541. Robbie Bennett | Keyboards | 1 |
| 541. Robbie Crowell | Bass | 1 |
| 541. Robbie Elias | Background Vocals | 1 |
| 541. Robbie Kuster | Drums | 1 |
| 541. Robbie McDonald | Guitar | 1 |
| 541. Robby Grant | Mellotron | 1 |
| 541. Robby Takac | Background Vocals, Bass | 1 |
| 541. Robert "Boogie" Bowles | Guitar | 1 |
| 541. Robert "Lord Finesse" Hall (emcee) | Musician | 1 |