Genres
Olafur Arnalds 
Olivier Messiaen 
Oval 
Oren Ambarchi 
O.R.K. 
Oxbow 
Organum 
Organisation
Otis Rush 
Omar & the Howlers 
Otis Taylor 
Otis Spann 
Odetta 
Otis Clay 
Oli Brown 
Otis Grand 
Oh Susannah 
Oliver Wallace 
Orlando Brown
Oliver Colbentson
Olivia Newton-John 
Oscar Peterson 
Olivia Rodrigo 
Ornette Coleman 
Ottmar Liebert 
Ofra Haza 
Oliver Nelson 
Oscar Brown Jr. 
Orson Welles
Okilly Dokilly 
Olina 
Oli Rockberger 
Old Crow Medicine Show 
Old Dominion 
Old 97's 
Orion 
Oliver Anthony Music 
Otis Gibbs 
Oesch's die Dritten
Okko
Oxford
Olio 
Owl City 
Orbital 
Odesza 
Orb 
Oh Wonder 
Oneohtrix Point Never 
Oceanlab 
Oregon 
Oysterband 
Ossian 
Olivia Ruiz 
Onevoice 
Olivia Rox- International
- African Traditions
- Brazilian Traditions
- Celtic/British Isles
- Central European Traditions
- Indian Subcontinent Traditions
- Japanese Traditions
- Jewish Music
- Mediterranean Traditions
- Middle Eastern Traditions
- Nordic Traditions
- Oceanic Traditions
- Russian Traditions
- South American Traditions
- Western European Traditions
- Worldbeat
Osibisa 
Omnia 
Os Mutantes 
Ornella Vanoni 
Orgone 
Oscar Peterson Trio 
Oz Noy 
O.C. Smith 
Ojos De Brujo 
Ozuna 
Oscar D'Leon 
Ozomatli 
Orchestra Baobab 
Orishas 
Omara Portuondo 
Obk 
Oslo Gospel Choir 
Omar Faruk Tekbilek 
Oliver Shanti 
Oonagh 
Ozzy Osbourne 
OneRepublic 
One Direction 
Oasis 
Orchestral Manoeuvres In The Dark 
Of Monsters And Men 
Otis Redding 
Ohio Players 
Omarion 
Odyssey 
Oleta Adams 
Omar 
Outkast 
Ol' Dirty Bastard 
Onyx 
Obie Trice 
Outasight 
Oddisee 
Omi 
Oceana 
Owen Gray 
Oneness Of Juju 
One Drop 
ozzie 
Oliver Lake 
One Sonic Society 
Oh, Sleeper 
Oracle 
Overseer 
Out of Eden 
Original Broadway Cast 
Overwerk 
Original London Cast 
Olivia Holt
OC Times
Octavia 
— Artist has been update in past 30 days- Artist 3— Artist has more than two albums