- O
- OO
- OO
- OOak
- OakObe
- ObeObs
- ObsOce
- OceOCN
- OCnOD
- ODAOde
- OdeOdr
- OdrOfe
- OfeOfM
- OfnOh
- OhOhg
- OhiOje
- OjeOke
- OkeOla
- OlaOld
- OldOle
- OleOli
- OliOll
- OllOly
- OlyOme
- OmeOmn
- OmnOnc
- OncOne
- OneOne
- OneOni
- ONIOno
- OnoOom
- OomOpe
- OpeOps
- OpsOra
- OraOrc
- OrcOrd
- OrdOrg
- OrgOri
- OriOrl
- OrlOrq
- OrqOrt
- OrtOsa
- OsaOse
- OshOsp
- OspOte
- OteOtt
- Ott
- OOut
- OutOut
- OutOut
- OutOve
- OveOV
- OVROwl
- OwlOZ
- OzOZw
- OZwOZZ
- Orgi-E feat. Winther, Bjarke
- Orgil
- Orgone (US funk band)
- Orgone feat. de León, Adryon
- Orgone feat. Franklin, Fanny
- Orgonite (Rave band based in israel)
- Orgullo Nativo
- Orgy (US rock band)
- Orhan, Mahmut
- Orhan, Mahmut & Colonel Bagshot
- Orhan, Mahmut & Şener, Sena
- Orhan, Mahmut feat. Şener, Sena
- Orhan, Sevcan
- Orhon, Cüneyd
- Ori (folktronica singer songwriter Ori Alboher)
- 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
- Óriás
- Oribasi, Lisa (Swiss singer‐songwriter)
- Oribu
- Orielles, The
- Orient Expressions
- Orient Fall (modern progmetal band)
- Orient Pearl
- Oriental Sunshine
- Oriente (Rap group)
- Orig. Alpenland Quintett
- ORIGA (Russian singer active in Japan)
- Origami Angel
- Origami Tsunami (Alternative band from Manchester)
- Origami, Button
- Origamibiro
- Origene
- Origin (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 Girl From the North Country
- Original Broadway Cast of Hamilton
- 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 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 Egerländer Musikanten, Die
- Original Flavor ('90s US rap group)
- Original God
- Original God & LIL NARNIA
- Original Gros Bonnet
- Original Lead Singers of The Temptations, The
- Original London Cast
- Original London Cast of Girl From The north Country
- Original London Cast of Miss Saigon
- Original London Cast of Sister Act
- ORIGINAL LOVE
- Original Mirrors
- Original Motion Picture Soundtrack
- Original Naabtal Duo
- Original Pistols, The
- Original Rap Staff
- Original Rudeboys, The
- Original Sin (UK drum and bass)
- Original Südtiroler Spitzbuam
- Original Swimming Party
- Original Television Cast of Hairspray LIVE!
- Original TV Studio
- Original Uman
- Original Zillertaler (Folk, Pop)
