- O
- OO
- OO
- OO
- OOak
- OakOat
- OatObi
- ObiObs
- ObsOce
- OceOce
- OceOct
- OctOdd
- OddOde
- OdeOdi
- OdiOef
- OefOfe
- OffOff
- OffOGK
- OglOh
- ohOhm
- OhmOiz
- OizOka
- OKAOKS
- Oks
- OlOld
- OldOle
- OleOli
- OliOli
- OliOll
- OllOls
- OlsOMA
- OmaOME
- OmeOmn
- OmnOna
- OnaOne
- OneOne
- OneOne
- OneOne
- ONEOnl
- OnlOnt
- OnTOom
- OomOpe
- OpeOph
- OphOpu
- OpuOra
- OraOrb
- OrbOrc
- OrcOrd
- OrdOrg
- OrgOri
- OriOri
- OriOrl
- OrlOrp
- OrpOrq
- OrqOrt
- OrtOsa
- OsaOsc
- OscOsk
- OskOst
- OstOte
- OteOTR
- OTROtt
- OttOum
- OumOut
- OUTOut
- OutOut
- OutOv
- OVOve
- OveOvi
- OviOwe
- OweOxf
- OxfOza
- ozz
- Old Man’s Child
- Old McBezen & Dungaree Dan
- Old Merry Tale Jazzband
- Old Mervs
- Old Neon
- Old Night
- Old One
- Old Ox
- Old Paths, The
- Old Reliable String Band
- Old Romantic Killer Band, The (NEW EP and gigs - see press release)
- Old Salt Union
- Old School (Bangladeshi band)
- Old School Freight Train
- Old School Players
- Old Sea Brigade
- Old Sea Brigade feat. Sital‐Singh, Luke
- Old Season
- Old Sepultura
- Old Settlers
- Old Skin (Manchester, UK hardcore)
- Old Smokey
- Old Soul (Montreal rock band)
- Old Soul Rebel
- Old Stove
- Old Time Radio
- Old Time Relijun
- Old Town School of Folk Music
- Old Town Trio
- Old Wave
- Old Wharf (Metalcore/Beatdown band from Wolverhampton, UK.)
- Old Wharf & Bound in Fear
- Old Wharf ft Hounslow, Daniel
- Old Wounds (New Jersey hardcore band)
- Old, Jase
- Oldarra
- OLDCODEX
- Olde (Canada, Metal)
- Olde Pine
- Olde Throne
- Oldeaf
- Oldelaf
- Oldelaf et Monsieur D.
- Older Sun
- Oldest Sea
- Oldfield, Mike
- Oldfield, Mike & Anderson, Jon
- Oldfield, Mike feat. Chapman, Roger
- Oldfield, Mike feat. Westenra, Hayley
- Oldfield, Mike with Anderson, Jon
- Oldfield, Sally
- Oldfield, Sally feat. Oldfield, Mike
- Oldfield, Terry
- Oldfield, Terry & Garo, Carlos
- Oldfield, Terry & Saraswati, Soraya
- Oldfield, Wendy
- Oldham Tinkers, The
- Oldham, Andrew, Orchestra, The
- Oldham, Ned
- Oldham, Spooner
- Oldham, Will
- Oldhead
- Oldians, The (ska jazz band from Barcelona, Spain)
- Oldods
- OldPee (French rapper, 13 Block)
- Olds, Jerome
- Oldsoul
- oldstar
- Oldu O Zaman
- Ole 60
- Ole Alfsen
- Ole Erling
- Ole Evenrud
- Ole I’Dole
- Ole Ivars
- Olé Olé
- Olé Olé con Diges, Daniel
- Olé Olé con Modestia Aparte
- Olé Olé con Norte, El, Segura, Santiago, Modestia Aparte, Antonio Albella y Pingüino en mi ascensor, Un
- Olé Olé con San Basilio, Paloma
- Oleander
- Oleksza
- Olemus
- Olen
- Olender, Al
- Olenius, Adam
- Olenka & the Autumn Lovers
- Oléria, Ellen
- Olestar, Los
- Olexandr Ignatov
