- O
- OO
- OO
- OO
- OOaf
- OAFOaK
- OakOBE
- ObeObn
- OBO
- Oce
- OceOCS
- OCTOct
- OctOdd
- OddODE
- ODEOdo
- OdoOf
- OfOff
- OFFOfi
- OfiOgr
- OgrOh
- OhOHN
- OhnOiz
- OJOKA
- OkaOkm
- OKOOla
- OlaOld
- OldOld
- OldOle
- OleOli
- OliOli
- OLIOls
- OlsOma
- OmaOma
- Omaomg
- omgOmo
- OmoO
- OnaOne
- OneOne
- OneOne
- ONE
- OneOnl
- OnlONT
- ontOom
- OomOpe
- OpeOph
- OphOpt
- OpuOra
- OraOrb
- OrbOrc
- OrcOrc
- OrcOre
- OreOri
- OriOri
- OriOrk
- OrkOro
- OroOrq
- OrqOrs
- OrsOru
- OruOsb
- OsbOsc
- OscOSM
- OsmOst
- OstOte
- oteOtr
- OtrOtt
- OttOui
- OuiOus
- OusOut
- OutOut
- OutOut
- OutOve
- OveOVE
- OveOwe
- oweOwn
- OwnOxy
- Oxy
- OZZ
- ozzozz
- Oriach, Riccie (Tropical artist from the dominican republic)
- Oriain, Charlie
- Oriakhi, Davina
- Orialus
- Oriana (Argentine model, actress and singer)
- Oriana Nash (American singer-songwriter, Oriana Isabel Nash)
- Orianthi
- Orianthi & Bonamassa, Joe
- Óriás (Hungarian rock band)
- Oribasi, Lisa (Swiss singer‐songwriter)
- Oribu
- Orician (Trance and progressive house producer)
- ORIE.
- Oriel (previously Oriel Poole)
- Oriel, Jonathan
- Orielles, The
- Orient Expressions
- Orient Expressions feat. Aynur
- Orient Fall (modern progmetal band)
- Orient Pearl
- Oriental Sunshine
- Oriental Wind
- Orientales, Les
- Oriente (Rap group)
- Oriente, Luz, Cynthia & Delacruz
- Orig. Alpenland Quintett
- ORIGA (Russian singer active in Japan)
- Origami Angel
- Origami Aquém
- Origami Button
- Origami Phase
- Origami Tsunami (Alternative band from Manchester)
- Origamibiro
- Origen
- Origene
- Origin (US, Kansas, metal band)
- Origin Unknown (UK drum & bass producers Andy C & Ant Miles)
- Origin, The
- Originais do Samba, Os
- Originais do Samba, Os & Xis
- Original 3
- Original 7ven, The (formerly 'The Time')
- Original Alpenland Quintett
- Original Arzgebirgsche Randfichten
- Original Broadway Cast
- Original Broadway Cast
- Original Broadway Cast
- Original Broadway Cast
- Original Broadway Cast of Buena Vista Social Club (Original Broadway Cast of Buena Vista Social Club)
- Original Broadway Cast of Girl From the North Country
- Original Broadway Cast of Hamilton
- Original Broadway Cast of On Your Feet!
- Original Broadway Cast of The Great Gatsby - A New Musical
- Original Broadway Cast of The Notebook
- Original Cast (this is a real artist. DO NOT USE for musical soundtracks!)
- Original Cast (Original Theatre Cast)
- Original Cast of SpongeBob SquarePants, The New Musical
- Original Cast of Stereophonic & Butler, Will
- Original Cast Recording
- Original Caste, The (folk group)
- Original Charlie Parker Quintet
- Original Concept
- Original Crooks and Nannies, The
- Original de Manzanillo, la
- Original Deutschmacher, Die
- Original Dixieland Jazz Band
- Original Dutch Cast Of "Elisabeth"
- Original Egerländer Musikanten, Die
- Original Five Blind Boys of Mississippi
- Original Flavor ('90s US rap group)
- Original Gabber, The
- Original God
- Original God & LIL NARNIA
- Original Gospel Harmonettes, The
- Original Gros Bonnet
- Original Koffee (Jamaican reggae singer Mikayla Simpson AKA Koffee)
- Original Koffee feat. Govana
- Original Koffee feat. Gunna
- Original Koffee feat. Macgizmo, Jane
- Original Lead Singers of The Temptations, The
- Original London Cast of Girl From The north Country
- Original London Cast of Miss Saigon
- Original London Cast of Seven Brides for Seven Brothers
- Original London Cast of Sister Act
- ORIGINAL LOVE
- Original Mirrors
- Original Motion Picture Soundtrack
- Original Movies Orchestra, The
- Original Naabtal Duo
- Original Pistols, The
