| Artist | Genre | ||
|---|---|---|---|
| 1301 |  | Orso | |
| 1302 |  | Orson | Indie/Rock |
| 1303 |  | Orson Scott Card | |
| 1304 |  | Orson Welles | |
| 1305 |  | Ortega Fernando | |
| 1306 |  | Orthanc | |
| 1307 |  | Orthodox | |
| 1308 |  | Orthodox Celts | Folk |
| 1309 | | Orthodox Chants | |
| 1310 | | Orthodox Christian Hymns | |
| 1311 | | Ortiq Otajonov | |
| 1312 | | Orton Beth | |
| 1313 |  | Orup | 80s/Pop |
| 1314 |  | Orville Johnson | |
| 1315 |  | Orville Stoeber | |
| 1316 |  | O'Ryan | Acoustic/Indie/Rnb |
| 1317 |  | OS 101 | |
| 1318 |  | Os Almirantes | Rock |
| 1319 |  | Os Azeitonas | |
| 1320 | | Os Hipcritas | |
| 1321 | | Os Hipócritas | |
| 1322 | | Os Lunaticos | |
| 1323 |  | Os Mutantes | Rock |
| 1324 |  | Os Paralamas Do Sucesso | Rock |
| 1325 |  | Os Patrões | Classic |
Artists starting with “O”
Popular Artists
70s/80s/Country/Pop
Electronic/Hardcore
Rock
Emo/Hardcore