Genres
- Avant-Garde
- Blues
- Children's
- Classical
- Comedy/Spoken
- Country
- Easy Listening
- Electronic
- Folk
- International
- Jazz
- Latin
- New Age
- Pop/Rock
- R&B
- Rap
- Reggae
- Religious
- Stage & Screen
- Vocal
- Heavy Metal
Ozzy Osbourne 65
Opeth 35
Overkill 48
Of Mice & Men 14
Orianthi 5
Obituary 24
Otherwise 6
Orgy 14
Otep 10
Orange Goblin 9
Onslaught 12
Outcast 4
The Ocean 20
Orphaned Land 10
Obsession 7
Oh, Sleeper 4
Oz 13
Old Man's Child 8
Omnium Gatherum 11
One Day As A Lion
Ossian 14
On Thorns I Lay 7
OPM 2
One Minute Silence 8
Omar Rodriguez-Lopez 8
October Falls 8
Orange 9mm 5
October Tide 5
Old Man Gloom 8
Onmyo-za 7
Obus 11
O.N.A. 12
Overdose 9
Opera Ix 6
Obey The Brave 4
One Man Army And The Undead Quartet 2
Opiate 2
Ophthalamia 6
Odium 7
Opiate For The Masses 3
Open Hand 3
Octavia Sperati 2
Obtained Enslavement 4
Obliveon 5
OBSIDIAN 5
Ondskapt 4
Oathean 7
Orthrelm
Overcast 2
Ov Hell
OneSideZero 3
Opus Atlantica
Once Nothing 3
Oblomov 4
Obsidian Gate 3
Oratory
Outspoken 7
Otyg 5
Orcustus 2
Octinomos 4
O.D
On A Pale Horse
Ocrilim 3
October File 2
Old Lady Drivers
Obscurus Advocam 2
Outlaw Order
Oppressor 2
Opprobrium 4
Obduktion 2
One-Way Mirror 4
Of The Son
Old Funeral 2
Order Of Ennead 2
Order Of The Ebon Hand
Obtest 5
Oneside 3
Obrero 2
Overmars 2
Odd Project 2
Omar Rodriguez Lopez
ORI
Orcus
Old Wainds
Overtorture 2
Osculum Obscenum
Obsidian Butterfly
— Artist has been update in past 30 days- Artist 3— Artist has more than two albums