| Robert Parker |
3 |
| Robert Pattinson |
39 |
| Robert Pattinson & Kristen Stewart |
4 |
| Robert Pattinson ft. Kristen Stewart |
2 |
| Robert Pattison |
5 |
| Robert Pete Williams |
2 |
| Robert Pierre |
4 |
| Robert Plant |
199 |
| Robert Plant & Alison Krauss |
17 |
| Robert Plant & The Strange Sensation |
7 |
| Robert Plant And The Strange Sensation |
2 |
| Robert Plant and Alison Krauss |
11 |
| Robert Plant and the Strange Sensation |
4 |
| Robert Pollard |
17 |
| Robert Post |
9 |
| Robert Ramirez |
6 |
| Robert Randolph |
7 |
| Robert Randolph & The Family Band |
8 |
| Robert Randolph And The Family Band |
6 |
| Robert Rodriguez |
4 |
| Robert Rodriguez feat. Los Lobos |
3 |
| Robert Skoro |
9 |
| Robert Smith |
5 |
| Robert Tepper |
13 |
| Robert Vadney |
8 |
| Robert Wells |
2 |
| Robert Wilkins |
2 |
| Robert Wilson |
2 |
| Robert Wyatt |
82 |
| Robert-gil Barlat |
5 |
| Roberta Campos |
2 |
| Roberta Flack |
86 |
| Roberta Flack & Donny Hathaway |
5 |
| Roberta Flack and Peabo Bryson |
2 |
| Roberta Gambarini |
10 |
| Roberta Kelly |
2 |
| Roberta Miranda |
10 |
| Roberta Sá |
9 |
| Robertino Loreti |
6 |
| Robertino Loretti |
10 |
| Roberto Alagna |
18 |
| Roberto Angelini |
10 |
| Roberto Antonio |
2 |
| Roberto Bellarosa |
3 |
| Roberto Benigni |
3 |
| Roberto Bignoli |
5 |
| Roberto Blades |
4 |
| Roberto Blanco |
13 |
| Roberto Cacciapaglia |
6 |
| Roberto Carlos |
180 |