1,978 selected
- O Band, The
- O Future
- O Maonlaí, Liam
- O Positive
- O Septeto
- O' Connell, Maura
- O' Connor, Sinead
- O' Jays, The
- O' Maoniai, Liam
- O'Brien, Dermot
- O'Brien, Edna
- O'Brien, Floyd
- O'Brien, Mary
- O'Brien, Richard
- O'Brien, Sonny (Sonny [BEL])
- O'Brien, Steven
- O'Brien, Tim
- O'Brien, Virginia
- O'Bryan
- O'Callaghan, Cindy
- O'Callaghan, John
- O'Canainn, Tomas
- O'Connel, Robby
- O'Connell, Bill
- O'Connell, Helen
- O'Connell, Maura
- O'Connell, Maurice
- O'Connell, Patrick
- O'Conner, Donald
- O'Connoll, Maurice
- O'Connor, Caroline
- O'Connor, Carroll
- O'Connor, Cavan
- O'Connor, Charles
- O'Connor, Des
- O'Connor, Donald
- O'Connor, Hazel
- O'Connor, John
- O'Connor, Kathie
- O'Connor, Paddy
- O'Connor, Sinead
- O'Dale, Martin
- O'Day, Anita
- O'Dell
- O'Dell, Brooks
- O’Dell, Doye
- O'Dell, Frock
- O'Diamonds, Jack
- O'Dire, Cokni
- O'Donahughe, Mark
- O'Donis, Colby
- O'Donnel, Rachell
- O'Donnel, Ryan
- O'Donnell, Alison
- O'Donnell, James
- O’Donnell, Rachel
- O’Donnell, Ryan
- O'Donovan, Gill
- O'Dowd, George Alan
- O'Farril, Arturo
- O'Flionn, Liam
- O'Flynn, Liam
- O'G3NE
- O'Gallagher, Liam
- O'Grady, Lorraine
- O'Halloran, Brian
- O'Halloran, John
- O'Hara's Playboys
- O'Hara, Frank
- O'Hara, Jill
- O'Hara, Mary
- O'Hara, Mary Margaret
- O'Hara, Paige
- O'Hara-Smith Singers
- O'Hearn, Patrick
- O'Henry, Henry
- O'Jay's
- O'Jays, The
- O'Kaysions
- O'Keefe, Danny
- O'Keefe, Johnny
- O'Keefe, Lester
- O'Kelly, Leo
- O'kunes, The
- O'Leary, Diarmuid
- O'Leary, Etienne
- O'List, Suzy
- O'Magick, Patrick
- O'Malley, Pat
- O'Malley, Pat J.
- O'Malley, Rory
- O'Malley, Stephen
- O'Mara, Katte
- O'Nal, Haktan
- O'Neal, Alexander
- O'Neal, Gradie
- O'Neal, Jamie
- O'Neal, John
- O'Neal, Johnny
- O'Neal, Shaquille
- O'Neill, Brendan
- O'Neill, Con
- O'Neill, Eoghan
- O'Neill, Kelly
- O'Neill, Larry
- O'Neill, Lisa
- O'Neill, Paul
- O'Quin, Gene
- O'Regan, Pat
- O'Reilly, Paul
- O'Reillys & The Paddyhats, The
- O'Rion, Alex
- O'Riordan, Dolores
- O'Rourke, Jim
- O'Rourke, Mary
- O'Rourke, Miceal
- O'Se, Sean
- O'Shaughnessy, Donna
- O'Shaughnessy, Gary
- O'Shea, Ivan
- O'Shea, Mick
- O'Sullivan, Camille
- O'Sullivan, Gilbert
- O'Sullivan, Jerry
- O'Sullivan, Maire
- O'Sullivan, Ray Edward (Gilbert O'Sullivan)
- O, Karen
- O-Town
- O-Zone
- O-Zone [BEL]
- O. Kay
- O., Charlie
- O., Soffie
- O., Soffy
- O.A.R.
- O.C. Smith (Smith, Ocie Lee)
- O.C. Supertones, The
- O.G.I.
- O.G.s
- O.K.
- O.M.F.O.
- O.P.
- O.P.M.C.
- O.R.D.U.C.
- O.R.G.A.N.
- O.R.T.F. Symphony Orchestra
- O.S.M. Koor o.l.v. Jacques Klöters
- O.T. Quartet, The
- O.T.T.
- O.Williams, Wendy (W.O.W.)
- O`Connor, Hazel
- Oak Ridge Boys
- Oak Ridge Boys, The
- Oakenfold, Paul
- Oakenfull, Dominic (Ski Oakenfull)
- Oakey, Philip
- Oakley, Berry
- Oasis [GBR]
- Oasis [NLD]
- Oasis [religieus]
- Oates, John
- Oattes Van Schaik
- Oattes, Bernard
- Oatts, Dick
- Ob6sions, The
- Obeah Men, The
- Obel, Agnes
- Oberbeck, Susanne
- Oberbrandacher, Walter
- Oberdorfer, Heinz
- Obergrainauer Musikanten
- Oberhoff, Stefan
- Obernbayrische Blaskapelle, Die
- Obernik, Sam
- Obernkirchen Children's Choir, The
- Oberschelp, Friedrich
- Obey, Ebenezer
- Obi
- Obie Trice
- Obispo, Pascal
- Obituary
- Object One
- Object,spherical
- Objector
- Oblique
- Obliterator
- Oblivians
- Oblomov
- Oblomow
- Obmana, Vidna
- Obnoxios Uk, The
- Obnoxious, The
- Oborin, Lev
- Obraszowa, Jelena
- Obraztsov, Anatoly
- Obraztsova, Elena
- Obscure FM
- Observer Allstars, The
- Obsession
- Obsessive
- Obstruction
- OC Smith (Smith, Ocie Lee)
- Ocarina Orchestra
- Ocasek, Ric
- Occasional Word, The
- Occhiminuti, Jean-Claude
- Occhiogrosso, Peter
- Occidental College Konzert-Chor
- Ocean [CDN]
- Ocean [FRA]
- Ocean [NLD]
- Ocean Colour Scene
- Ocean Viva Silver
- Ocean, Billy
- Ocean, Frank
- Ocean, The
- Oceania
- Oceanic
- Oceans of Sadness
- Oceans, The
- Ocejo, José Luis
- Ochester Juan Llossas
- Ochestre des Concerts Lamoureux
- Ochi, Silvia
- Ochi, Takashi
- Ochman, Wieslaw
- Ochoa, Daniel
- Ochoa, Eliades
- Ochoa, Maria Elena
- Ochos, Eliades
- Ochs, Phil
- Ochsenknecht, Uwe
- Ochsner, Erik
- Ochten, Sandra van
- Ockerse, Taco (Taco)
- Ocobar
- Ocougne, Silvia
- Ocsidized
- Octagon
- Octagon Man, The
- Octavarium Orchestra, The
- October Cherries
- October Tide
- Octophoros
- Octopus
- Octopus [GBR]
- Oda-Main
- Odal
- Odarodle & de Boarzepiepers
- Odd Clouds
- Not filled in