| 1226 | | Originoo Gunn Clapazz | |
| 1227 | | Originoo Gunn Clappaz | Hip-Hop |
| 1228 | | Orignal Naabtal Duo | |
| 1229 | | Orikasa Ai | |
| 1230 | | Orin Cristina | |
| 1231 | | Orininal Oberkrainer | |
| 1232 | | Orioles, The | |
| 1233 | | Orion | Hip-Hop |
| 1234 | | Orion f/ Vers One | |
| 1235 | | Orion Riders | |
| 1236 | | Orion String Quartet | |
| 1237 | | Orion String Quartet;Lorraine Hunt Lieberson;Peter Serkin;New York Philharmonic | |
| 1238 | | Orion String Quartet;Lorraine Hunt Lieberson;Peter Serkin;New York Philharmonic | |
| 1239 | | Orion The Hunter | 80s/Pop/Rock |
| 1240 | | Orion Too | |
| 1241 | | Orions | Pop/Rock |
| 1242 | | Orishas | Hip-Hop/Latin |
| 1243 | | Orison | |
| 1244 | | Orji | |
| 1245 | | Orka | |
| 1246 | | Orkest Klein | |
| 1247 | | Orkhan Murad | |
| 1248 | | Orkrist | |
| 1249 | | Orla Fallon | |
| 1250 | | Orla Gartland | |
70s/80s/Country/Pop
Electronic/Hardcore
Rock
Emo/Hardcore