- O
- OO
- OO
- OO
- OO
- OOak
- OakObe
- ObeOBL
- OblObs
- Obsoce
- OceOce
- oceOct
- OctOda
- OdbOdd
- OddOde
- OdeODU
- ODUOf
- OfOff
- OFFOfi
- Ofiogo
- OGROh
- OhOhi
- OhiOIL
- OilOk
- OkOke
- OkeOl
- OlOla
- OlaOld
- OldOl
- OlOlg
- OlgOli
- OliOli
- OliOls
- OlsOMA
- OmaOma
- OmaOme
- OmeOmn
- OmnOn
- OnOne
- ONEOne
- OneOne
- OneOne
- OneONJ
- OnkOnn
- ONOOny
- OnyOos
- OosOpe
- OpOpi
- OpiOpu
- OpuOra
- Oraorb
- OrbOrc
- OrcOrc
- OrcOre
- OreOrh
- OrhOri
- ORIOrk
- OrkOrn
- OrnOrq
- OrqOrr
- OrrOrt
- OrtOsa
- OsaOsc
- OscOsk
- OskOss
- OssOT
- OtaOth
- OthOtt
- OttOtt
- OttOur
- OurOut
- OutOut
- OutOut
- OutOv
- OvOve
- OveOve
- OveOwe
- OweOwl
- OwlOxl
- Oxl
- OzaOzo
- OzoOzz
- Orhan, Mahmut, Arutan, Ali & Selin
- Orhan, Sevcan
- Orhon, Cüneyd
- Orhon, Ozan
- Ori (folktronica singer songwriter Ori Alboher)
- Ori, Viktor
- Oria
- Oria (Progressive Groove Metal, Thessaloniki, Central Macedonia)
- Oria (French singer)
- 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)
- Orianne (Orianne Orezza)
- 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 Fall (modern progmetal band)
- Orient Pearl
- Oriental Sunshine
- Oriental Wind
- 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 Lost Boys
- 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 Crooks and Nannies, The
- Original de Manzanillo, la
- Original Deutschmacher, Die
- Original Dixieland Jazz Band
- Original Dutch Cast of “Elisabeth”
- Original Dutch Cast of “Elisabeth” & Burleson, Stanley
- Original Egerländer Musikanten, Die
- Original Flavor ('90s US rap group)
- 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
