- O
- OO
- OO
- OO
- OOaf
- OAFOaK
- OakOBE
- ObeObn
- OBO
- Oce
- OceOCS
- OCTOct
- OctOdd
- OddODE
- ODEOdo
- OdoOf
- OfOff
- OffOff
- OfiOgr
- Ogroh
- OhOHN
- OHNOiz
- OizOka
- OKAOkl
- OklOla
- OlaOld
- OldOld
- OldOle
- OleOli
- OliOli
- OliOls
- OlsOm
- OmOma
- OmaOMG
- OMGOmo
- OmoOna
- OnaOne
- OneONE
- ONEOne
- ONEOne
- OneOnl
- OnlOns
- OnsOom
- OomOpe
- OpeOpg
- OpgOpt
- OptOra
- OraOrb
- OrbOrc
- OrcOrc
- orcOre
- OreOrh
- OrhOri
- ORIOrk
- ORKOro
- OroOrq
- OrqOrs
- OrsOrt
- OrtOsb
- OsbOsc
- OscOsl
- OslOst
- Ote
- OteOTR
- OTROtt
- OttOug
- OugOus
- OusOut
- OutOut
- OutOut
- OutOve
- OveOve
- OVEOwe
- OweOwl
- Owl
- Oxx
- Ozz
- Ozzozz
- Orbison, Joy
- Orbison, Joy & Boddika
- Orbison, Joy & James, Joe
- Orbison, Joy w/ Gumbani, Goya
- Orbison, Joy w/ Sen, Léa
- Orbison, Joy, Overmono & Kwengface
- Orbison, Joy, Overmono & Skiifall
- Orbison, Roy
- Orbison, Roy & Harris, Emmylou
- Orbison, Roy & lang, k.d.
- Orbison, Roy & Melson, Joe
- Orbison, Roy & Roses, The
- Orbison, Roy and Teen Kings, The
- Orbison, Roy and Teen Kings, The
- Orbison, Roy and Teen Kings, The
- Orbison, Roy feat. Cash, Johnny, Lewis, Jerry Lee & Perkins, Carl
- Orbison, Roy feat. Harris, Emmylou
- Orbison, Roy feat. lang, k.d.
- Orbison, Roy with Cash, Johnny, Lewis, Jerry Lee and Perkins, Carl
- Orbison, Roy with Royal Philharmonic Orchestra
- Orbit (Boston‐based rock band)
- orbit (German indie pop)
- Orbit (Japanese-Korean Group)
- Orbit Culture (melodic death metal/groove metal)
- Orbit Service
- Orbit, William (English musician, composer and record producer)
- Orbit, William feat. Melua, Katie
- Orbit, William feat. Orton, Beth
- Orbit, William feat. Scattergood, Polly
- Orbita Wiru (Polish rock group)
- Orbital (UK techno group)
- Orbital (atmospheric black metal band from Canada)
- Orbital & Badalamenti, Angelo
- Orbital & Hammett, Kirk
- Orbital & Lady Leshurr
- Orbital & Sleaford Mods
- Orbital & Voorn, Joris
- Orbital Alignment (Progressive Death Metal from Nottingham, UK)
- Orbital feat. Hammett, Kirk
- Orbital feat. Hawking, Stephen
- Orbital feat. Lady Leshurr
- Orbital feat. Little Pest, The
- Orbital feat. Mediaeval Baebes
- Orbital feat. Mediaeval Baebes
- Orbital Junction (UK rock band)
- Orbital Resonance Dilemma (Chilean rock band)
- orbital voices
- Orbital, Sleaford Mods
- Orbiter (Stephen Walking & 7 Minutes Dead)
- Orbiter (indie rock band from Boston)
- Orbiting Human Circus
- Orbits (Norwegian band featuring members of Jaga Jazzist and Neon Ion)
- Orbits, The (1950s US doo-wop group from Hartford, CT)
- Orbits, The (a.k.a. The Laurels, 50s doo-wop)
- orbitt, Riku Matsushima, Timbre, the Carrier, Dari
- ORBO & The Longshots
- ORBS
- Orbweavers, The (Melbourne Band)
- Orc (progressive metal band from Lansing, MI, USA)
- Orca (UK early 1990’s breakbeat production duo)
- Orca (Psychedelic trance artist)
- Orca (portuguese group)
- ORCA (The Metal Rock Summer Festival)
- Orca Eroticae
- ORCALAND
- OrcaMind
- Orcas
- Orchardist, The (Nashville folk band)
- Orchards (band from Brighton, UK)
- Orchards (Alternative metal band from Dallas, Texas)
- Orchester der Bayreuther Festspiele, Böhm, Karl
- Orchester der Bayreuther Festspiele, Krauss, Clemens
- Orchester der Deutschen Oper Berlin, Jochum, Eugen
- Orchester der Vereinigten Bühnen Wien
- Orchester der Wiener Volksoper
- Orchester der Wiener Volksoper, Kantschieder, Paul
- Orchester Gino Mariano
- Orchester Reto Parolari
- Orchester Werner Tauber
- Orchestra
- Orchestra (Hot Spot Orchestra)
- Orchestra (For Now), The (art rock/progressive rock group)
- Orchestra Alec Medina
- Orchestra Bagutti
- Orchestra Baobab (Senegalese Afro‐Cuban band)
- Orchestra Capri
- Orchestra Città di Ferrara
- Orchestra del Maggio Musicale Fiorentino, Serafin, Tullio
- Orchestra del Teatro alla Scala di Milano, Giulini, Carlo Maria
- Orchestra del Teatro alla Scala di Milano, Serafin, Tullio
