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
- Heavy Metal
Ozzy Osbourne 71
Opeth 39
Overkill 48
Of Mice & Men 15
Orianthi 5
Obituary 24
Otherwise 7
Orgy 14
Otep 11
Orange Goblin 9
Oomph! 41
Onslaught 12
Outcast 4
The Ocean 20
Orphaned Land 10
Operation: Mindcrime 4
Obsession 7
Oh, Sleeper 5
Old Man's Child 8
Oz 13
Omnium Gatherum 12
One Day As A Lion
Ossian 15
On Thorns I Lay 8
OPM 2
October Tide 6
Omar Rodriguez-Lopez 8
One Minute Silence 8
October Falls 11
Orange 9mm 5
Old Man Gloom 8
Onmyo-za 7
Oceans Of Slumber 4
Obus 11
O.N.A. 12
Overdose 9
Opera Ix 6
Obey The Brave 5
One Man Army And The Undead Quartet 2
Ophthalamia 6
Odium 7
Opiate 2
Obtained Enslavement 4
Opiate For The Masses 3
Octavia Sperati 2
Open Hand 3
Obliveon 5
Ondskapt 4
OBSIDIAN 5
Oathbreaker 5
Oathean 7
Obscure Infinity 4
Orthrelm
OneSideZero 3
Overcast 2
Once Nothing 3
Ov Hell
Ocean Grove 5
Opus Atlantica
Oliva
Oblomov 4
Obsidian Gate 3
Oratory
Opprobrium 5
Outspoken 7
Outrun The Sunlight 5
Otyg 5
Orcustus 2
O.D
Octinomos 4
On A Pale Horse
Oppressor 3
One Machine 2
Ocrilim 3
October File 2
Old Lady Drivers
Obscurus Advocam 2
Outlaw Order
Okilly Dokilly 2
Obduktion 2
One-Way Mirror 4
Ocean 3
Old Funeral 2
Of The Son
Ohm:
Order Of Ennead 2
Order Of The Ebon Hand
Oneside 3
Obtest 5
Oozing Wound 4
Obrero 2
Omar Rodriguez Lopez 2
Overmars 2
Odd Project 2
ORI
Orcus
Ofermod 2
Old Wainds
Overtorture 2
— Artist has been update in past 30 days- Artist 3— Artist has more than two albums