| Robert Paul |
2 |
| Robert Pete Williams |
2 |
| Robert Pierre |
18 |
| Robert Plant |
116 |
| Robert Plant & Alison Krauss |
20 |
| Robert Plant and the Strange Sensation |
8 |
| Robert Pollard |
90 |
| Robert Post |
11 |
| Robert Raimon Roy |
8 |
| Robert Randolph & The Family Band |
22 |
| Robert Rodriguez |
2 |
| Robert Sapolsky |
2 |
| Robert Shaw Chorale |
3 |
| Robert Skoro |
8 |
| Robert Tepper |
5 |
| Robert Vadney |
2 |
| Robert Wells |
3 |
| Robert Wyatt |
47 |
| Robert de Boron |
4 |
| Roberta Campos |
15 |
| Roberta Flack |
77 |
| Roberta Flack & Donny Hathaway |
12 |
| Roberta Flack with Donny Hathaway |
3 |
| Roberta Gambarini |
10 |
| Roberta Miranda |
149 |
| Roberta Sá |
65 |
| Roberto Alagna |
19 |
| Roberto Angelini |
22 |
| Roberto Antonio |
7 |
| Roberto Bellarosa |
3 |
| Roberto Benigni |
4 |
| Roberto Blades |
5 |
| Roberto Blanco |
9 |
| Roberto Cacciapaglia |
6 |
| Roberto Carlos |
435 |
| Roberto Ciotti |
2 |
| Roberto Firpo |
2 |
| Roberto Frejat |
31 |
| Roberto Goyeneche |
56 |
| Roberto Goyeneche & Raúl Garello |
9 |
| Roberto Jacketti & The Scooters |
9 |
| Roberto Jordán |
8 |
| Roberto Junior Y Su Bandeño |
2 |
| Roberto Kunstler |
13 |
| Roberto Ledesma |
13 |
| Roberto Menescal |
5 |
| Roberto Murolo |
32 |
| Roberto Orellana |
11 |
| Roberto Pulido y los Clásicos |
2 |
| Roberto Ribeiro |
30 |
| Roberto Roena |
17 |
| Roberto Roena y Su Apollo Sound |
10 |
| Roberto Rufino |
2 |
| Roberto Silva |
7 |
| Roberto Soffici |
6 |
| Roberto Tapia |
53 |
| Roberto Torres |
5 |
| Roberto Vecchioni |
232 |
| Roberts Gobziņš |
10 |
| Robertson Brothers |
4 |
| Robertson Robbie |
2 |
| Robi Draco Rosa |
78 |
| Robi Kahakalau |
5 |
| Robi Rosa |
3 |
| Robie Williams |
2 |
| Robin |
67 |
| Robin & Linda Williams |
7 |
| Robin Beanland |
2 |
| Robin Beck |
16 |
| Robin Black & the Intergalactic Rock Stars |
12 |
| Robin Borneman |
11 |
| Robin Des Bois |
2 |
| Robin Foster |
3 |
| Robin Fox |
5 |
| Robin Gibb |
85 |
| Robin Grey |
23 |
| Robin Holcomb |
7 |
| Robin Lane & The Chartbusters |
3 |
| Robin Lee |
2 |
| Robin Luke |
3 |
| Robin Mark |
51 |
| Robin McKelle |
9 |
| Robin McNamara |
2 |
| Robin Pecknold |
3 |
| Robin S. |
11 |
| Robin Schulz |
20 |
| Robin Skouteris |
9 |
| Robin Sparkles |
3 |
| Robin Stine |
2 |
| Robin Stjernberg |
21 |
| Robin Thicke |
124 |
| Robin Thicke feat. Lil Wayne |
2 |
| Robin Thicke feat. Nicki Minaj |
2 |
| Robin Trower |
81 |
| Robin Trower & Jack Bruce |
4 |
| Robin Williams |
8 |
| Robin Williamson |
18 |
| Robin Williamson & His Merry Band |
8 |
| Robin Wright |
2 |
| Robin Zander |
13 |