- O (2 Songs)
- O Bando do Velho Jack (4 Songs)
- O Beco (1 Songs)
- O Cubo (13 Songs)
- O Curinga (1 Songs)
- O Espírito da Coisa (1 Songs)
- O Furto (16 Songs)
- O Grande Encontro II (1 Songs)
- O Men (1 Songs)
- O Quam Tristis (1 Songs)
- O Quarto das Cinzas (1 Songs)
- O Rappa (60 Songs)
- O Rei Leão (4 Songs)
- O Sonso (1 Songs)
- O Surto (14 Songs)
- O Teatro Mágico (15 Songs)
- O Terço (11 Songs)
- O Vecchione (8 Songs)
- O Verbo (8 Songs)
- O'Brien Richard (2 Songs)
- O'Conner Sidney (1 Songs)
- O'Neal Jamie (9 Songs)
- O'neal, Jamie (24 Songs)
- O'neil, Melissa (12 Songs)
- O'ryan (12 Songs)
- O'Sullivan Gilbert (187 Songs)
- O-Town (62 Songs)
- O-Zone (38 Songs)
- O.A.R. (55 Songs)
- O.a.r. (of A Revolution) (56 Songs)
- O.G. Ron C. (4 Songs)
- Oak (9 Songs)
- Oakenfold, Paul (1 Songs)
- Oakey Philip And Moroder Giorgio (8 Songs)
- Oar (31 Songs)
- Oasis (265 Songs)
- Oathean (6 Songs)
- Obecana Zemlja (13 Songs)
- Obeco (5 Songs)
- Obie Bermudez (27 Songs)
- Obie Trice (93 Songs)
- Obito (6 Songs)
- Obituary (114 Songs)
- Obk (59 Songs)
- Oblivion Dust (52 Songs)
- Obra de Maria (1 Songs)
- Obscurcis Romancia (6 Songs)
- Obsessed, The (17 Songs)
- Obtained Enslavement (19 Songs)
- OC Supertones, The (78 Songs)
- Ocean Blue (48 Songs)
- Ocean Colour Scene (60 Songs)
- Oceanlab (16 Songs)
- Oceansize (9 Songs)
- Ochre (11 Songs)
- Octane (8 Songs)
- Octava Dimensión (1 Songs)
- Octavia (31 Songs)
- Octinomos (9 Songs)
- October 31 (7 Songs)
- October Crisis (9 Songs)
- October Project (15 Songs)
- October Tide (3 Songs)
- Ocultan (8 Songs)
- Odair Jose (11 Songs)
- Odd Project (21 Songs)
- Oddie (4 Songs)
- Odds (48 Songs)
- Oderra Danielle (1 Songs)
- Odeurs (1 Songs)
- Odious Sanction (1 Songs)
- Odres Novos (1 Songs)
- Of A Revolution (44 Songs)
- Of Montreal (69 Songs)
- Ofarim Esther (4 Songs)
- Off (121 Songs)
- Off By One (41 Songs)
- Offcuts (32 Songs)
- Offenbach (8 Songs)
- Offer Nissim (8 Songs)
- Officina (13 Songs)
- Offset (12 Songs)
- Offspring, The (197 Songs)
- Oficinag3 (11 Songs)
- Ogata Megumi (42 Songs)
- Ogéret Marc (4 Songs)
- ohGr (20 Songs)
- Ohio Express (7 Songs)
- Ohio Players (36 Songs)
- Ohio Players, The (3 Songs)
- Oi Polloi (55 Songs)
- Oi Va Voi (1 Songs)
- Oingo Boingo (86 Songs)
- Ok Go (47 Songs)
- Okkervil River (35 Songs)
- Ol' Dirty Bastard (77 Songs)
- Ol' Dirty Bastard (49 Songs)
- Olavi Uusivirta (16 Songs)
- Old Dead Tree, The (11 Songs)
- Old Man Child (3 Songs)
- Old Man's Child (45 Songs)
- Old Mans Child (59 Songs)
- Oleander (114 Songs)
- Olemus (20 Songs)
- Oleta Adams (9 Songs)
- Olga Tañon (45 Songs)
- Olho da Lua (3 Songs)
- Olho de Gato (8 Songs)
- Olho Seco (7 Songs)
- Oli P. (4 Songs)
- Olimpia (3 Songs)
- Olive (23 Songs)
- Oliver (1 Songs)
- Oliver James (3 Songs)
- Oliver Magnum (8 Songs)
- Oliver Onions (1 Songs)
- Olivia (37 Songs)
- Olivia Heringer (5 Songs)
- Olivia Newton-John (245 Songs)
- Olivia Olson (1 Songs)
- Olivier Franck (1 Songs)
- Olocausto (1 Songs)
- Olodum (30 Songs)
- Olsen Brothers, The (6 Songs)
- Olsen Twins (114 Songs)
- Olstead, Renee (12 Songs)
- Olympos Mons (5 Songs)
- Oman Freestyle (11 Songs)
- Omar A. Rodriguez-Lopez (9 Songs)
- Omarion (44 Songs)
- Omc (4 Songs)
- Omd (12 Songs)
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- Omp (1 Songs)
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- One Dead Three Wounded (10 Songs)
- One Dollar Short (67 Songs)
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- One Man Army (90 Songs)
- One Minute Silence (65 Songs)
- One More Time (8 Songs)
- One Piece (39 Songs)
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- One Voice (49 Songs)
- One Way System (24 Songs)
- ONE-LAST-SHOT (9 Songs)
- One-T (3 Songs)
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- Onesto Jennifer (6 Songs)
- Only Crime (22 Songs)
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- Onyx (53 Songs)
- Oomph (71 Songs)
- Oomph! (93 Songs)
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- Opallas (21 Songs)
- Open Grave (14 Songs)
- Open Hand (60 Songs)
- Opera IX (67 Songs)
- Opera Multi Steel (76 Songs)
- Operatica (1 Songs)
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- Opeth (113 Songs)
- Ophthalamia (11 Songs)
- Opiate For The Masses (14 Songs)
- Opm (35 Songs)
- Opue (1 Songs)
- Opuestos Sentidos (6 Songs)
- Orange 9mm (37 Songs)
- Orange Goblin (35 Songs)
- Orchid (24 Songs)
- Orgy (79 Songs)
- Orlando Silva (37 Songs)
- Orleans (1 Songs)
- Orphaned Land (37 Songs)
- Orrico, Stacie (25 Songs)
- Orthanc (8 Songs)
- Os 3 do Nordeste (33 Songs)
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- Os Chefes (6 Songs)
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- Os Monarcas (132 Songs)
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- Os Mulekes (48 Songs)
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- Os Novos Baianos (50 Songs)
- Os Ordinários (1 Songs)
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- Os Ostras (2 Songs)
- Os Pampeiros (26 Songs)
- Os Paralamas do Sucesso (254 Songs)
- Os Patrões (28 Songs)
- Os Pedrero (62 Songs)
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- Os Serranos (276 Songs)
- Os Sungas (20 Songs)
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- Os Tiranos (1 Songs)
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- Osbourne, Kelly (23 Songs)
- Oscar De La Hoya (6 Songs)
- Oscar G (1 Songs)
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- Oskão (13 Songs)
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- Osmose (2 Songs)
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- Ostbahn-Kurti Und Die Chefpartie (1 Songs)
- Otep (50 Songs)
- Other Two (1 Songs)
- Otis Redding (139 Songs)
- Otto (13 Songs)
- Otto's Daughter (20 Songs)
- Our Lady Peace (137 Songs)
- Ouro Preto E Boiadeiro (2 Songs)
- Ours (74 Songs)
- Out Of Eden (35 Songs)
- Out Of Your Mouth (9 Songs)
- Outbreak (15 Songs)
- Outfield (54 Songs)
- OutHead (2 Songs)
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- OutKast (313 Songs)
- Outlandish (69 Songs)
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- Outside (1 Songs)
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- Ouvir e Crer (69 Songs)
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- Ov7 (33 Songs)
- Oval Portrait, The (13 Songs)
- Over It (47 Songs)
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- Overhead (19 Songs)
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- Owen (15 Songs)
- Owen Mark (3 Songs)
- Owen, Mark (15 Songs)
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- Oxide & Neutrino (5 Songs)
- Oxide & Neutrino (7 Songs)
- Oxide And Neutrino (4 Songs)
- Oxigênio (1 Songs)
- Oxymoron (60 Songs)
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- Oz Bambas (1 Songs)
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- Ozone (11 Songs)
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- Ozzy Osbourne (254 Songs)