Genres
- Avant-Garde
- Blues
- Children's
- Classical
- Comedy/Spoken
- Country
- Easy Listening
- Electronic
- Folk
- Holiday
- International
- Jazz
- Latin
- New Age
- Pop/Rock
- Alternative/Indie Rock
- Art-Rock/Experimental
- British Invasion
- Dance
- Europop
- Folk/Country Rock
- Foreign Language Rock
- Hard Rock
- Heavy Metal
- Alternative Metal
- Black Metal
- British Metal
- Death Metal
- Doom Metal
- Goth Metal
- Grindcore
- Guitar Virtuoso
- Hair Metal
- Industrial Metal
- Neo-Classical Metal
- New Wave of British Heavy Metal
- Pop-Metal
- Power Metal
- Progressive Metal
- Punk Metal
- Rap-Metal
- Scandinavian Metal
- Sludge Metal
- Speed/Thrash Metal
- Stoner Metal
- Symphonic Black Metal
- Pop/Rock
- Psychedelic/Garage
- Punk/New Wave
- Rock & Roll/Roots
- Singer/Songwriter
- Soft Rock
- R&B
- Rap
- Reggae
- Religious
- Stage & Screen
- Vocal
- Heavy Metal
Ozzy Osbourne 95
Opeth 51
Overkill 63
Orianthi 12
Of Mice & Men 20
Obituary 27
Otherwise 13
Otep 12
Orange Goblin 11
Oomph! 42
Onslaught 14
The Ocean 25
Orden Ogan 13
Omen 9
Orchid 11
Orphaned Land 13
Outcast 4
OSI 9
Operation: Mindcrime 4
Obsession 7
OM 14
Obscura 8
Orbit Culture 13
Oz 15
Omnium Gatherum 16
Oh, Sleeper 5
Old Man's Child 8
Oceans Of Slumber 8
Overdrive 12
Of Mice And Men 2
Origin 11
One Day As A Lion
Once Human 5
On Thorns I Lay 9
October Falls 13
Omar Rodriguez-Lopez 14
Oceano 8
October Tide 7
One Minute Silence 9
Orange 9mm 5
OPM 2
Oranssi Pazuzu 9
One Bad Son 5
Onmyo-za 9
Old Man Gloom 10
Overdose 10
Only Child 3
O.N.A. 12
Opera Ix 12
Outline In Color 10
Obscenity 11
Obey The Brave 5
Open Hand 4
Ophthalamia 6
Old
One Man Army And The Undead Quartet 3
Overload 3
Ocean 4
Odium 8
Obliveon 5
Oathbreaker 5
Obtained Enslavement 4
Ocean Grove 7
Octavia Sperati 2
Ondskapt 5
Opiate For The Masses 3
Oath 6
OneSideZero 3
Opprobrium 5
Ominous 3
Orthodox 6
Oppressor 6
Oliva
Occult 5
Overcast 3
Obscure Infinity 4
Oratory 2
Orthrelm
Outrun The Sunlight 5
Once Nothing 3
Opus Atlantica
Oathean 7
Oratorio
Ov Hell
Oblomov 4
O.L.D. 5
O.A.T.H.
Obsidian Gate 3
Obsequiae 4
Okilly Dokilly 2
One Machine 2
Otyg 5
Octinomos 4
Orcustus 2
On A Pale Horse
October File 2
Ohm:
O.D
Old Funeral 2
— Artist has been update in past 30 days- Artist 3— Artist has more than two albums