Orange Sky Noppadon Hiranrat, Alexi Murdoch Guitar, Piano, Electric guitar Gospel, New Age, Folk, Classical, Pop
Orange Juice Melanie Martinez, Michael Keenan Leary, Dario D'aversa, Steven King Guitar Folk World & Country, Indie Pop, Alternative Pop/Rock, Pop
Organ Grinder Blues Clarence Williams Piano, Guitar, Organ, Electric guitar Blues, Jazz, Boogie Woogie, Pop
Ordinary Barenaked Ladies, Bart Hendrickson, Patrick Monahan, Train, Pat Monahan Guitar, Piano, Electric guitar Rock, Folk, Alternative Pop/Rock, Stage & Screen, Adult Alternative
Ordinary Love David Evans, Brian Burton, Dan Truman, The Edge, Adam Clayton, Bob DiPiero Guitar, Piano, Drums Pop, Romantic, Folk, Pop Rock, Rock
One More Suicide Marcy Playground, John Wozniak Guitar, Electric guitar Pop, Alternative Rock, Pop Rock
One Of Your Girls Oscar Gorres, Troye Sivan Mellet, Troye Sivan, Amy Casey, Brett Leland McLaughlin Piano Pop, Rhythm & Blues
One Road Jussi Kontinen, Steven Lee Lukather, Randy Goodrum, Steve Lukather, David Paich, Sick Boy Drums, Drum Set, Tenor, Guitar, Electric guitar Pop Rock, Soft Rock, Pop, Rock
One Sweet World David J. Matthews, Dave Matthews Guitar, Electric guitar Rock, American Trad Rock, Folk, Adult Alternative, Pop Rock
One Thing Right Christopher Comstock, Kane Brown, Matthew John McGinn, Josh Hoge, Jesse Frasure, Matthew McGinn Guitar, Piano, Electric guitar Electronic, Country Pop, Pop
Ordinary Day Vanessa Carlton, Shaina Taub, Toby Anderson Piano, Guitar, Electric guitar Folk, Adult Alternative, Rock, Adult Contemporary, Pop Rock
Ordinary Things Gavin Jackson Music, Ariana Grande, Nick Lee Bass guitar, Bass, Guitar Pop, Rhythm & Blues
I Exalt Thee / Open the Eyes of My Heart Mark Hayes, Larry Shackley, Deborah Brady, Ken Medema, Stephen DeCesare, Paul Baloche Piano, Guitar, Ukulele, Bass guitar, Soprano Saxophone, Tenor Saxophone Rock, Contemporary Christian, Pop Rock, Stage & Screen, Gospel
Open Up Your Door Julie Doubleday, Richard Hawley Guitar, Cello, Viola, Violin, Piano, Electric guitar alternative, Pop, Folk, Rock
Operation Ouch Dobs Vye, Jose Ignacio Huante Ceron, Jess Charles Piano Pop, Rock, Opera, Stage & Screen, Children
