| Trans-Siberian Orchestra | ClásicaPop | 3 |
| Oscar Benton | Blues / Blues rock | 1 |
| Obe Dve | Música hindi | 1 |
| Oleg Smith | Rap / hip-hop | 1 |
| Onerah | Rap / hip-hop | 1 |
| Fall Out Boy | Rap / hip-hopPopRock | 4 |
| Oliver Heldens | Música de bailePopMúsica electrónica | 4 |
| Oleg Miami | Pop | 13 |
| OFFMi | Rap / hip-hop | 1 |
| Onlife | Rap / hip-hop | 1 |
| The Offspring | Música alternativa / Rock alternativoRock | 5 |
| System of a down | Rock | 3 |
