O
O'
O-
O.
Oa
Ob
Oc
- Ocean
- Ocean Colour Scene
- Oceana
- Oceanlab
- Oceansize
- Ocho
- Octane
- Octavia Harp Ensemble
- October 31
- October Fall
- October Project
- October Tide
- Octobop
- Octopus
Od
- Odd Future
- Odd Nordstoga
- Odd Numbers
- Odd Squad
- Odds Against Tomorrow
- Ode To Abbey
- Odean Pope
- Odell Brown
- Odell Harris
- Odessa Harris
- Odetta
- Odette Quesada
- Odies Williams
- Odyssey
Of
- Of Monsters and Men
- Of Montreal
- Of the Son
- Of Verona
- Ofer Assaf
- Off Broadway
- Off By One
- Off Our Rocker
- Off the Record
- Offer Nissim
- Office
- Officer Negative
- Offramp
- Ofra Harnoy
- Ofra Haza
Oh
Oi
Oj
Ok
Ol
- Ol Skool
- Ol' Dirty Bastard
- Ola Kvernberg
- Olaf Henning
- Old & In the Way
- Old 97's
- Old Blind Dogs
- Old Chicago Blues Band
- Old Crow Medicine Show
- Old Jawbone
- Old Man's Child
- Old School Freight Train
- Old School Players
- Ole "Fessor" Lindgreen
- Olé Olé
- Oleander
- Oleg Lundstrem
- Oleta Adams
- Oletha Carter
- Olga Konkova
- Olga Tañón
- Oli. P
- Olive
- Oliver
- Oliver Gannon
- Oliver Hart
- Oliver Jackson
- Oliver Jones
- Oliver Koletzki
- Oliver Morgan
- Oliver Nelson
- Oliver Onions
- Oliver/Dawson Saxon
- Olivia
- Olivia
- Olivia
- Olivia Broadfield
- Olivia Newton-John
- Olivia Ruiz
- Olivia the Band
- Ollabelle
- Olly Murs
- Olodum
- Olsen Brothers
- Olympia Serenaders
- Olympic Hopefuls
Om
On
- On
- On 3
- On Broken Wings
- On the Frontline
- On Thorns I Lay
- Once Blue
- Ondrej Havelka
- One
- One 2 Many
- One Bad Pig
- One Block Radius
- One Dead Three Wounded
- One Direction
- One Dollar Short
- One eskimO
- One Flew South
- One for All
- One Hit Wonder
- One King Down
- One Leg Up
- One Less Reason
- One Line Drawing
- One Man Army
- One Minute Silence
- One Nation Under
- One Night Only
- One O'Clock Lab Band
- One Six Conspiracy
- One True Thing
- One Voice
- One Way
- One Way Ride
- One Way System
- Onelinedrawing
- OneRepublic
- Ones & Zeros
- Onesidezero
- Oneuponedown
- Only Crime
- Only Living Witness
- Only Son
- Onslaught
- Onward
- Onyx
- Onzy Matthews
Oo
Op
- OP8
- Open Hand
- Open Mic Karaoke
- Open Road
- Operation Ivy
- Operator
- Opeth
- Ophélie Winter
- Opiate for the Masses
- Opium Jukebox
- OPM
- Oppera
- Opposite Day
- Oppressor
- Optiganally Yours
- Optimystic
- Opus
- Opus 3 Jazz Trio
- Opus III
Or
- Or
- Ora
- Orange 9mm
- Orange Bicycle
- Orange Blue
- Orange Juice
- Oranj Symphonette
- Orba Squara
- Orbit
- Orbital
- Orchester Franz'l.
- Orchestra Del Sole
- Orchestra Manhattan
- Orchestra Tropical Brasil
- Orchestral Manoeuvres in the Dark
- Orchid
- Order of Nine
- Orelsan
- Orenda Fink
- Organ & Chimes
- Organized Konfusion
- Orgy
- Orianthi
- Oriental Echo Ensemble
- Origin
- Original Banda el Limón de Salvador Lizárraga
- Original Broadway Cast
- Original Camellia Jazz Band of New Orleans
- Original Caste
- Original Casts
- Original Dixieland Jazz Band
- Original Flavor
- Original Indiana Five
- Original London Cast
- Original Piano Trio
- Original Pin Stripe Brass Band
- Original Prague Syncopated Orchestra
- Original Trinidad Steel Band
- Originoo Gunn Clappaz
- Orion
- Orion
- Orion the Hunter
- Orishas
- Orlando
- Orlando Julius
- Orlando Philharmonic Orchestra
- Orlando Pops Orchestra
- Orlando Silva
- Orleans
- Orleya
- Ormonde
- Orna
- Ornella Vanoni
- Ornette
- Ornette Coleman
- Oro Solido
- Orphanage
- Orphei Drängar
- Orphéon Célesta
- Orquesta América
- Orquesta Aragón
- Orquesta de la Luz
- Orquesta Mondragon
- Orquesta Noche Sabrosa
- Orquesta Riverside
- Orquesta Romantica del Casino de Hawana
- Orquesta Sabor Tropical
- Orquesta Salsa Gorda
- Orquesta Sonora de Havana
- Orquesta Tropical Do Caribe
- Orquestra Mahatma
- Orrall & Wright
- Orrin Evans
- Orrin Hatch
- Orrin Star
- Orrin Tucker
- Orson
- Orson
- Orville Couch
Os
- Os Gatos
- Os Mutantes
- Os Paralamas do Sucesso
- Osaka Popstar
- Osamu Kitajima
- Osborne & Giles
- Osborne Brothers
- Oscar
- Oscar "Papa" Celestin
- Oscar Alemán
- Oscar Andrade
- Oscar Brown, Jr.
- Oscar Castro-Neves
- Oscar Chávez
- Oscar D'León
- Oscar de la Hoya
- Oscar Klein
- Oscar Moore
- Oscar Peterson
- Oscar Pettiford
- Oscar Rabin
- Oscar Toney, Jr.
- Oscar Wolfe
- Osi Lewin
- Osker
- Ossie Scott
- Oswaldo Montenegro
Ot
- Otavio Augusto/Gabriel
- Otep
- Other Men
- Otherwise
- Otis Blackwell
- Otis Clay
- Otis Grand
- Otis Redding
- Otis Rush
- Otis Spann
- Otis Stokes
- Otis Taylor
- Otomo Yoshihide
- Ottmar Liebert
- Otto Weiss
- Otto's Daughter
- Otyg
Ou
- Our Heart's Hero
- Our Lady Peace
- Our Last Night
- Our Mothers Daughters
- Our Plastic Dream
- Ours
- Out of Eden
- Out of Phase
- Out of the Grey
- Out to Win
- Outasight
- Outbreak
- OutKast
- Outlandish
- Outlaw Blood
- Outlawz
- Outlets
- Outline
- Outrageous Cherry
- Outsidaz
- Outspoken
- Outta Control
Ov
- OV 7
- Oval Opus
- Ove Lind
- Over It
- Over the Rhine
- Overcast
- Overcome
- Overflow
- Overkill
- Overseer
- Overtures
- Ovid Alexis