Artist-O
- Otis Williams
- Olivia Dean
- The Original Matadors
- O.B. Buchana
- Odds & Ends
- Osaka Monaurail
- Omega-One
- Opensouls
- O'Chi Brown
- Ollie Baba
- Opus 7
- Our Ladies Of Soul
- Otis Leaville
- The Ordells
- Ozz & His Sperlings
- Ollie Jackson
- The Original Drifters
- Olu
- Osiris (Germany)
- Ortheia Barnes
- Oscar Mack
- Ohmega Watts
- Ohio Untouchables
- Odessa Harris
- O'Conner
- The Original 7ven
- Omara
- Otis Brown III
- Orgone
- Osborne & Giles
- The Original Pilgrim Wonders
- O.C. Tolbert
- Ozo
- Oneness Of Juju
- Orange Krush
- Orlando Johnson
- Obrey Wilson
- Onyx (70')
- Omar Cunningham
- Oliver Joy
- Ollie & the Nightingales
- The Objectives
- Oliver Sain
- Oddysee & Company
- October London
- On Edge
- ORS(Orlando Riva Sound)
- Other Brothers
- The Occasions
- Ozomatli
- Otis Corley
- Ona Watson
- Otis Junior & Dr. Dundiff
- Original Just Us
- On Stage
- Outkast
- On The House
- Oasis
- One ¶ 3
- osibisa
- Ottawan
- Otis Rush
- Opa
- Omarion
- Otis Redding & Carla Thomas
- Obatala
- O.C. Smith
- Opolopo
- Oral Caress
- Otis Williams and the Charms
- Oscar Boyd with the Calvaes
- Oncoming Times
- Oscar Irvin
- Ojeda Penn
- Obvey Wilson
- One Shade
- Olympic Runners
- Original Breed
- Oscar Snow
- Omega Sunrise
- The Other Brothers Organization
- Odia Coates
- O'Bryan
- Odyssey (Native New Yorker's)
- Odyssey (Mowest's)
- Odyssey 5
- Ohio Players
- O'Jays
- Ol' Dirty Bastard
- Oleta Adams
- Oliver Cheatham
- Ollie Nightingale
- Ol Skool
- The Olympics
- O'MAR
- Omar
- Omar Chandler
- Omni
- One Way
- O.V.Wright
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2021-04-29
2013-08-07
2013-04-15
2012-01-13
2012-01-12
2011-01-14
2011-01-13