Genres
- Avant-Garde
- Blues
- Children's
- Classical
- Comedy/Spoken
- Country
- Easy Listening
- Electronic
- Folk
- Holiday
- International
- Jazz
- Latin
- New Age
- Pop/Rock
- R&B
- Rap
- Reggae
- Religious
- Stage & Screen
- Vocal
- Pop/Rock
One Direction 27
OneRepublic 55
Ozzy Osbourne 89
Oasis 53
Olivia Newton-John 59
Owl City 46
Of Monsters And Men 11
Olly Murs 17
Orchestral Manoeuvres In The Dark 40
Opeth 40
Overkill 48
Old Crow Medicine Show 15
Outlaws 23
Orbital 46
Old Dominion 12
Orb 92
Orleans 18
O.A.R. 21
Oingo Boingo 34
Old 97's 27
Ozric Tentacles 51
Of Mice & Men 18
Omi 3
Ocean Colour Scene 41
Ozark Mountain Daredevils 5
Omarion 13
Orianthi 7
Our Lady Peace 16
Odesza 11
OK GO 10
Olafur Arnalds 23
Obituary 24
Our Last Night 39
Otherwise 8
Orgy 15
Omar & the Howlers 23
Ofra Haza 31
Olivia Rodrigo 5
Odyssey 17
Otep 11
Oleta Adams 11
Okkervil River 17
Of Montreal 26
Orange Juice 13
Orange Goblin 10
Over The Rhine 25
One Ok Rock 24
Ohio Express 4
Oh Wonder 14
Oomph! 41
Oysterband 13
Onslaught 13
Omnia 15
Omar 15
Orden Ogan 10
The Ocean 23
Oriya
Outsiders 7
Operation Ivy 5
Outcast 4
Omen 10
Oh Land 9
Outasight 9
Orphaned Land 10
Ozomatli 8
Orchid 9
Os Mutantes 20
Operation: Mindcrime 4
Ottawan 26
Ornella Vanoni 11
Other Lives 5
Obsession 7
Obscura 7
Oceansize 21
OM 14
One Night Only 4
One Less Reason 9
Otto Knows 3
Oh, Sleeper 5
Offer Nissim 12
Ofenbach 7
Oz 14
O-Town 3
Odin 10
Omnium Gatherum 13
Oleander 6
Oliver Koletzki 19
Old Man's Child 8
Orion 19
Oophoi 47
Oliver Heldens 2
Overland 7
Oceana 6
One Desire 2- Offenbach 8
Osanna 11
Owen Pallett 7
Oliver Tree 8
Oscar And The Wolf 3
— Artist has been update in past 30 days- Artist 3— Artist has more than two albums