Index-O
OBITUARY
- SLOWLY WE ROT
- THE END COMPLETE
- BACK FROM THE DEAD
- FROZEN IN TIME
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OBLIVION PROTOCOL
OBSCURA
OLD DIRTY BUZZARD
OLD MAN'S CHILD
- ILL-NATURED SPIRITUAL INVASION
- REVELATION 666 - THE CURSE OF DAMNATION
- IN DEFIANCE OF EXISTENCE
- VERMIN
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OLD WAINDS
OMNIUM GATHERUM
Azΐ
ONSLAUGHT
ON THORNS I LAY
- CRYSTAL TEARS
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ONWARD
- EVERMOVING
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OPETH
- MORNINGRISE
- BLACKWATER PARK
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OPUS ATLANTICA
- OPUS ATLANTICA
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ORDEN OGAN
- EASTON HOPE
- TO THE END
- RAVENHEAD
- GUNMEN
- FINAL DAYS
- THE ORDER OF FEAR
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THE ORGANIZATION
- THE ORGANIZATION
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ORION'S REIGN
ORPHANAGE
- BY TIME ALONE
- INSIDE
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ORPHAND LAND
OPERADYSE
OTEP
OUTRAGE
- THE FINAL DAY
- SPIT
- LIFE UNTIL DEAF
- WHO WE ARE
- IT'S PACKED
- OUTRAGE
- OUTRAGED
- RAGING OUT
- RUN RIOT
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OVERKILL
- UNDER THE INFLUENCE
- I HEAR BLACK
- W.F.O.
- THE KILLING KIND
- KILLBOX13
- THE ELECTRIC AGE
- WHITE DEVIL ARMORY
- THE GRINDING WHEEL
- THE WINGS OF WAR
- SCORCHED
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OVERTOUN
OZZY OSBOURNE
- BLIZZARD OF OZZ
- NO REST FOR WICKED
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