•  Oak Ridge boys (Elvira)
•  Oakenfold (Starry eyed surprise)
•  OAR (Hey girl)
•  Oasis (Wonderwall)
•  John O'Banion (Love you like I never loved)
•  Olivia O'Brien - Featured on "I Hate U, I Love U" by Gnash
•  Ric Ocasek (Emotion in motion)
•  Billy Ocean (Get outta my dreams, get into my car)
•  Frank Ocean (Thinkin bout you)
•  Sinead O'Connor (Nothing compares to you)
•  Alan O'Day (Undercover angel)
•  Colby O'Donis (What you got)
•  Offset - Featured on "Taste" by Tyga and "Hurts like hell" By Madison Beer
•  Offspring (Pretty fly for a white guy)
•  Of Monsters and men (Little talks)
•  Oh Honey (Be okay)
•  Ohio Players (Love rollercoaster)
•  O-Jays (Use ta be my girl)
•  Ol' Dirty Bastard (Got your money)
•  Old 97s (Nineteen)
•  Mike Oldfield (Tubular bells)
•  Olive (You're not alone)
•  Ollie + Jerry (Breakin')
•  Nigel Olsson (Dancin' shoes)
•  Omi (Cheerleader)
•  Omarion (O)
•  OMC (How bizarre)
•  OMD (If you leave)
•  Alexander O'Neal (Fake)
•  Onerepublic (Apologize)
•  One Block Radius (You got me)
•  One Direction (What makes you beautiful)
•  One 2 Many (Downtown)
•  112 (Peaches and cream)
•  Onyx (Slam)
•  Opus (Live is life)
•  Rita Ora (How we do)
•  Roy Orbison (You got it)
•  William Orbit - Featured on "Feel good time" by Pink
•  Orgy (Blue Monday)
•  Orianthi (According to you)
•  Tony Orlando + Dawn (He don't love you)
•  Orleans (Still the one)
•  Benjamin Orr (Stay the night)
•  Robert Ellis Orrall (I couldn't say no)
•  Stacie Orrico (Stuck)
•  Jeannie Ortega (Crowded)
•  Jeffrey Osborne (You should be mine) 
•  Joan Osborne (One of us)
•  Kelly Osbourne (Papa don't preach)
•  Ozzy Osbourne (Close my eyes forever)
•  Emily Osment (Lovesick)
•  Osmonds (Love me for a reason)
•  Donny Osmond (Soldier of love)
•  Donny + Marie Osmond (I'm leaving it all up to you)
•  Marie Osmond (Paper roses)
•  The Other Ones (Holiday)
•  O-town (All or nothing)
•  Our Lady Peace (Somewhere out there)
•  Outasight (Tonight is the night)
•  Outfield (Your love)
•  OutKast (hey ya!)
•  Outlaws (There goes another love song)
•  Ovis (Regular thang)
•  Owl City (Fireflies)
•  Oxo (Whirly girl)
•  Ozark Mountain Daredevils (Jackie blue)
•  Ozuna (Taki taki)

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