| | - Olivia Rodrigo
- One Direction
- Ophelie Gaillard & Pulcinella Orchestra
- OneRepublic
- Of Monsters and Men
- Olly Murs
- The Offspring
- Our New Orleans
- Oasis
- Oli Silk
- Osiah
- Ocie Elliott
- Otto Klemperer, Philharmonia Orchestra, Elisabeth Schwarzkopf
- Owl City
- Orson
- Odette
- Ola Gjeilo
- OutKast
- Off the Cross
- Ozzy Osbourne
- Ofenbach
- OK Go
- Old Dominion
- Olav Larsen & the Alabama Rodeo Stars
- Orianthi
- Oh Wonder
- OMI
- Oliver Cheatham
- The Orb featuring David Gilmour
- Old Sea Brigade
- Otis Redding
- Omarion
- Olafur Arnalds & Alice Sara Ott
- One Night Only
- Otis Kane
- One Day as a Lion
- Old Crow Medicine Show
- Owen Pallett
- The Outfield
- Orchestral Manoeuvres in the Dark
- Orden Ogan
- ODESZA
- Orleans
- O-Zone
- Oh Sees
- Olafur Arnalds
- Oneness of Juju
- Outasight
- Omar Sosa
- Ohana Bam
- Orville Peck
- Opeth
- Other Lives
- Olafur Arnalds & Nils Frahm
- The Ordinary Boys
- O.A.R.
- Oliver Tree
- The Orielles
- Offa Rex
- Otta
- Orbit Culture
- One Desire
- The Overtones
- The Ozark Mountain Daredevils
- Odyssey
- Olive
- Okkervil River
- Olivia Newton-John
- OMC
- The Orwells
- Offset
- The O'Jays
- Oh Land
- Of Mice & Men
- Obie Trice
- ONBC
- Ought
- Outlaws
- Owl John
- Ol' Dirty Bastard
- Otis Rush
- Overland
- Oneohtrix Point Never
- Our Lady Peace
- Oscar Peterson
- Open Mike Eagle
- Outlandish
- Oscar and the Wolf
- Oxbow
- Operation Ivy
- Orbital
- Our Native Daughters
- Ocean Colour Scene
- Odd Future
- The Oh Hellos
- Oceans
- Oingo Boingo
- Operation: Mindcrime
- Olivia Chaney
- Oso Oso
- Osiris
- Oz Noy
- OnAir
- The Orb
- Otmar Suitner, Staatskapelle Berlin
- Old 97's
- Oonagh
- Ozuna
- OceanLab
- Operus
- Orgy
- Oran "Juice" Jones
- Ocean Alley
- Opium Warlords
- OHMME
- The Oscar Peterson Trio
- Oleta Adams
- Otherwise
- One House Worship
- Okay Kaya
- Otis Redding & Carla Thomas
- The Ocean
- Ofra Haza
- Ona
- Oceans of Slumber
- of Montreal
- Opus
- Oddisee
- Overkill
- One EskimO
- Outfit
- The Only Ones
- Otis Taylor
- Ohio Players
- Oscar Jerome
- Otis Gibbs
- The Offering
- OTR
- Olli Schulz
- Oh the Larceny
- Oren Lavie
- Ozomatli
- Orquesta Akokan
- Orquestra Was
- Orpheus Nine
- Oberhofer
- One Way
- Ohrenfeindt
- Onyx
- Oliver
- Obadiah Parker
- The Olms
- Ojos de Brujo
- Orishas
- Old Man Jasper
- OSI
- Orchestra Baobab
- Ozone
- Oh Laura
- The Osmonds
- Overcoats
- Omar Dykes
- Osees
- Olivia Holt
- Ohtis
- Operator Please
- Otep
- Ovlov
- The Ocean Blue
- Orange Goblin
- OFF!
- Oh Susanna
- Oliver Nelson
- Opossom
- Oleander
- Orange Juice
- Ozric Tentacles
- Oathbreaker
- Omnimotion
- ONE OK ROCK
- Outlasted
- Oliver Heldens
- Oscar
- Odie
- Osunlade
- The O'Reillys and The Paddyhats
- Operator
- Over the Rhine
- Otis Stacks
- Objekt
- Olga Pashchenko
- Ottoman Turks
- Old Salt Union
- The Olympians
- Out of Eden
- Omer Klein
- Omni Trio
- Osibisa
- The Oak Ridge Boys
- One Dove
- Oliver Koletzki
- Ottmar Liebert
- OPM
- Oli Brown
- Oh Pep!
- Omega Infinity
- Outer Spaces
- Ossuarium
- OCS
- Oi Va Voi
| - Omar
- Oceana
- Our Broken Garden
- Opal
- Ocean Grove
- Oxford Collapse
- O.C.
- Obituary
- Operators
- Of Virtue
- One Be Lo
- Odd Future Wolf Gang Kill Them All
- ORANGE RANGE
- One True Pairing
- Olivia
- Owl Eyes
- Oceansize
- Orion's Reign
- Olivia Ruiz
- Orquesta Del Tango De Buenos Aires
- Onita Boone
- Otis Grand
- One Way Ryde
- Odious Mortem
- Orphaned Land
- The One Hundred
- Om
- Oh No! Oh My!
- Oh, Sleeper
- Owen
- oOoOO
- The Original 7Ven
- Oysterhead
- Ocean
- Orlik
- Obscura
- Otto Klemperer
- O.Children
- One Self
- Owane
- Opus III
- Our Last Night
- Oh My!
- Oceans Ate Alaska
- One Eleven Heavy
- Oranssi Pazuzu
- Only Men Aloud
- Omni
- Odetta
- Oumou Sangare
- Omnium Gatherum
- Olga Scheps
- Orchid
- Obsequiae
- Olof Arnalds
- Oozing Wound
- Otto Klemperer, New Philharmonia Orchestra
- Orgone
- Oum Shatt
- Otis Spann
- Oomph!
- The Outsiders
- Onslaught
- Ornette Coleman
- Obscure Infinity
- Ornette
- Oliver Schories
- Oscar D'Leon
- O.R.K.
- Omar & The Howlers
- Owiny Sigoma Band
- Owel
- Odyssice
- Ojerime
- Oliver Wakeman with Steve Howe
- Once Human
- The Obsessed
- Onra
- Oneman
- Oliver Huntemann
- Ost & Kjex
- Off With Their Heads
- Okta Logue
- Ou est le swimming pool
- Olivia Broadfield
- Oliva
- Oliver Mtukudzi
- One More Girl
- Ostura
- Ozark Henry
- Oblivion Sun
- Organized Konfusion
- Octopus
- The Oath
- Oregon
- Old & In the Way
- Omar Kent Dykes & Jimmie Vaughan
- Olivia Lane
- Obliteration
- Oscar Brown Jr.
- Ott
- Octo Octa
- The Orange Peels
- Oh No Ono
- Os Mutantes
- Omega
- Oval
- O'Donel Levy
- On Thorns I Lay
- Odetta Hartman
- Olivia Nelson
- Outloud
- Obits
- Orange Blue
- Orchestra del Teatro alla Scala di Milano & Claudio Abbado
- Omar Apollo
- October Fall
- The Octopus Project
- Orba Squara
- Oxia
- Organic Pulse Ensemble
- Orchester der Deutschen Oper Berlin, Giuseppe Sinopoli
- Out Hud
- Olivia O'Brien
- The Old Firm Casuals
- Ohm Guru
- Osukaru
- Opus 5
- Okilly Dokilly
- Oshima Brothers
- Ola Podrida
- Orphaned Land & Amaseffer
- Oesch's die Dritten
- Official Secrets Act
- Oysterband
- Olden Yolk
- Off Road Minivan
- Our Hollow, Our Home
- The Orchids
- Outlands
- Oh No Not Stereo
- The Orange Humble Band
- Ocote Soul Sounds & Adrian Quesada
- O+S
- Oblivians
- Oakley Hall
- ONWE
- Outer Heaven
- Olin & The Moon
- Otis Clay
- The Other Two
- Old and New Dreams
- Omen
- Oxide & Neutrino
- Origin
- On An On
- Ookay
- Omnia
- Oddarrang
- One-Way Mirror
- The Orchestra of Syrian Musicians
- Oneida
- October Falls
- Orlando Julius
- Olivia Jean
- Oliver Shanti
- Orchestra and Chorus of the Royal Opera House, Covent Garden & Sir Georg Solti
- OperaBabes
- Orchestra and Chorus of the Welsh National Opera, Richard Bonynge
- Odonis Odonis
- The Olivia Tremor Control
- O'Hooley & Tidow
- Ollabelle
- One Less Reason
- Ocote Soul Sounds
- O'Death
- Otros Aires
- Old Man Markley
- Outworld
- Omar Rodriguez Lopez
- One Second Bridge
- The One AM Radio
- Olly Anna
- Organectomy
- Obey The Brave
- O
- Othello & The Pocket Change Band
- Outlaw Blood
- Orcas
- Of Modern Architecture
- Odds
- OTEO
- Or, The Whale
- Olu Dara
- Osada Vida
- Overdrive
- The Old Ceremony
- Orang-Utan
- Owen Temple
- Oscar Peterson, Ray Brown & Milt Jackson
- Orenda Fink
- Orchestre Poly-Rythmo
- The Other Half
- Oni
- Operatica
- O'Brother
- Otto Klemperer, Wiener Philharmoniker
- Opera Diabolicus
- Oforia
- Oliver Shanti & Friends
| - Ormonde
- Oka
- Only Crime
- Ours
- Orange Blossom
- Ogre
- Old Man's Child
- Outlawz
- Odd Nosdam
- Oriol
- The Organ
- October Project
- Orion the Hunter
- One Minute Silence
- Ozma
- Old Canes
- Outrage
- One to One
- Opio
- Omar S
- Ole Borud
- Overhead
- One More Time
- Outline in Color
- Only Child
- Old Man Gloom
- Omar Coleman
- Originoo Gunn Clappaz
- Ouroboros
- Oresund Space Collective
- OOIOO
- The Overseer
- OVERWERK
- Oxmo Puccino
- The Other Tribe
- Osmo Ikonen
- Onetwo
- Oxo 86
- The Ornette Coleman Double Quartet
- Orchestra and Chorus of The Royal Opera House Covent Garden, Richard Bonynge
- Orchestra and Chorus of La Scala, Carlo Sabajno
- Orrin Evans
- Orchestre de l'Opera de Paris, Pierre Boulez
- ohGr
- The Open
- One Without
- Odd Couple
- Outshyne
- Outrageous Cherry
- Old Funeral
- Old Haunts
- Odawas
- October Country
- Oceano
- Ostrogoth
- Orchestra of Spheres
- One Bad Son
- Oded Tzur
- Omar Codazzi
- Othello
- Oh No
- The Ornette Coleman Trio
- Olusheyi Banjo
- Ohm-G
- Oophoi & Louisa John-Krol
- Omnihility
- The Out Crowd
- Over The Ocean
- October Tide
- Owls
- Ostrich
- Odium
- Outline
- Olympia
- The Order of Elijah
- The Owls
- One for the Team
- Orange Sunshine
- Omar Rodriguez-Lopez
- Olga Kouklaki
- Officers
- OHHMS
- Olivia Pedroli
- One Way Ride
- Octavia Sperati
- Opprobrium
- Old Man's Will
- Organissimo
- Odd Squad
- One-Eyed Doll
- Ortolan
- Otargos
- Oedipus
- Olivier Le Goas Quartet
- Old Man River
- O.B. Buchana
- Of Eyes That See
- Orthodox Celts
- Omnizide
- Organic Grooves
- Osanna
- Orwell
- The Opposites
- Olympos Mons
- Omega Massif
- Orient Fall
- Oxford Circle
- Ola Onabule
- Osamu Kitajima
- Obelyskkh
- Onesidezero
- O'Ryan
- Overseer
- On Fillmore
- Old Wives
- Oakenshield
- Oliver Haidt
- Oureboros
- Oya
- Onkel Tom Angelripper
- Oscar + Martin
- The Oscillation
- Overdream
- Orne
- Ohbijou
- Oceans Divide
- Open Hand
- OuterSpace
- The O.C. Supertones
- Orup
- Omega Lithium
- Okay City
- Ocha la Rocha
- Old Time Relijun
- Oophoi
- Old Fire
- Os Pontos Negros
- Omotai
- One Ton
- One Man Army
- Opera IX
- Oakalla
- Oslo Swan
- Ordog
- Opgezwolle
- Oophoi & Tau Ceti
- Original Flavor
- Olli Banjo
- Organix
- On a Pale Horse
- Os Paralamas do Sucesso
- Orange Range
- O Rappa
- Okoume
- Odjbox
- Out Cold
- On Watership Down
- Otomo Yoshihide, Bill Laswell, Yoshigaki Yasuhiro
- Oblique Rain
- Oxmo Puccino & The Jazzbastards
- Overdose
- Oogee Wawa
- Officium Triste
- Okay
- Oslo 13
- Obscurity
- Oskar Linnros
- Olin and the Moon
- One Man Army & The Undead Quartet
- Obi Fernandez
- Os Golpes
- Oddjob
- Okera
- Obfusc
- Overnight Lows
- onelinedrawing
- Odd Project
- Ofrin
- Odyssea
- Ondskapt
- Ocultan
- Onry Ozzborn
- Ott Lepland
- Oholics
- Outcast
- Of Machines
- Open the Skies
- Onkel Kankel
- Osten med Resten
- Orth
- The Operation
- Oliver Hart
- Ordo Funebris
- Otto
- Opensouls
- Our Subatomic Earth
- Order of Ennead
- Orcustus
- One Hundred Hurricanes
- Ole ohne Kohle
- Officer!
- Odd Nordstoga
- O.C. & PF CUTTIN
- Ola Szmidt
- Ogris Debris
- Ono Loco & Lil Toro
- Ortel
- Oz
- Old Hundred
- The Original Sinners
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