O

Raw Black Metal band from Finland

OAEOZ

OAG

Oakenshield

Oakhelm

Oak Pantheon

Oana Sârbu

romanian singer and actress

O.A.R.

Oasis

70's Rock band from the US

Oasis

English rock band (1991–2009)

Oathbreaker

Oath to Vanquish

o Bardo e o Banjo

Brazilian bluegrass band

Oberer Totpunkt

Oberhofer

Oberon

Norwegian goth rock / neofolk artist Bard Titlestad

Oberschlesien

Obey the Brave

Obi

UK britpop band

Obie Bermúdez

Obie Trice

Obits

Obituary

US death metal band

Obitus

Object

industrial, Andreas "The Spectre" Malik

Objetivo Birmania

OBK

Obliveon

Oblivia

Australian band

Oblivians

Oblivion

blackened technical death metal

Oblivion Machine

Oblivion Sun

Obojeni program

Obrint Pas

O’Bryan

Obscenity

German death metal band

Obscenity Trial

Obscura

technical death metal band from Munich, Germany

Obscurant

Obscurcis Romancia

Obscure Sphinx

Obscurity

Black/Viking metal band from Germany

Obsession

UK group, dance remakes

Obsession

American metal

Obsidian Gate

Obsidian Kingdom

Obsidian Shell

Obskuria

Obtained Enslavement

Obtenebris

Obtest

Oc

Occitan Music

O.C.

East-coast US rapper Omar Credle

Occidens

Occult

Dutch thrash metal band

Ocean

US gospel rock band from the 1970s

Ocean

Polish Rock Band

Oceana

German Soul Singer

Oceana

US indie rock/post-hardcore band

Ocean Architecture

Ocean Chief

Ocean Colour Scene

Oceanfall

Oceania

Ocean Is Theory

OceanLab

OCEANLANE

Oceano

Ocean of Ghosts

Oceans Above

Christian Worship Band

Oceans Ate Alaska

Oceanship

Oceansize

Oceans of Sadness

Belgian metal band

Oceans of Slumber

Ocean Voyager

Oceanwake

Ocho Macho

Ochre

electronic musician Christopher Leary, UK

O Conqueror

O.C. Smith

Octafonic

Octane

Philadelphia hard rock band

Octarium

Octave

Italian metal band

Octave Minds

Chilly Gonzales and Boys Noize collaboration

Octaves

Hardcore band

Octavia

Bolivian pop

Octavia Sperati

Norse gothic metal band

Octinomos

October

female singer-songwriter

October 31

October Fall

piano-fueled pop punk band

October Falls

Octoberman

October Project

October Tide

Octobre

rock band from Quebec

Octobre Rouge

French rap group

Ocults

Odair Assad

Odar

Odawas

Odd Crew

Ex Каскадьори

Odd Future Wolf Gang Kill Them All

Oddisee

Oddities

Oddjob

Oddland

Odd Logic

US | Prog Rock/Metal

Odd Nordstoga

Odd Project

Odds

Canadian rock band

Odd Squad

Odd Thomas

O’Death

Odem

Odem Arcarum

Odes of Ecstasy

Odessa

UK Metalcore

Odessa

Female folk singer from Southern California

Odessa Chen

ODESZA

Odett

Hungarian singer–songwriter

Odetta

Holmes

Odette Lara

Odeurs

Odezenne

French hip-hop band

Odhinn

Odi

ska from Valencia

Odinfist

Odio a Botero

Odious

Odious Mortem

Odious Sanction

Odisseo

Mexican rock band

Odium

Norwegian black metal band

Odium

Canadian Melodic Death Metal Group

Odium Immortalis

German Black Metal Band

Odonis Odonis

Odroerir

OD TAPO IMI

Odyssea

Odyssey

Dan Swanö side project, Swedish progressive metal band

Odyssey

Romanian Folk Rock Group

Odyssey

originally US family act Lopez Sisters, now UK fronted by Steven Collazo

Oedipus

L.A. based power trio

O Emperor

Of Angels