Oops Harry Warren, Jacob Luttrell, Missy Elliott, Charlie Puth, Johnny Mercer, Steps Ahead Gitaar, Piano, Toetsenbord Easy Listening, Podium & Scherm, Pop, Teen Pop, punk
Oops! I Did It Again Max Martin, Florian Wagner, Britney Spears, Martin Sandberg, Rami Yacoub Piano, Gitaar, Klarinet, Fluit, Viool, Trompet Teen Pop, Pop, Dans, Folk
One Man Show Joseph Jonas, Nicholas Jonas, Kevin Jonas II, Jonas Brothers, Joe Jonas, Nick Jonas Elektrische gitaar, Gitaar, Piano Pop Rock, Pop, Teen Pop
Only Thing I Ever Get for Christmas Christopher Stewart, Tricky Stewart, Aaron Pearce, Tim Miner, Justin Bieber Piano Teen Pop, Pop
On The Line Nick Jonas, Joseph Jonas, Kevin Jonas II, Christopher Norton, Demi Lovato, Nicholas Jonas Piano, Elektrische gitaar, Gitaar Dance-pop, Pop, Pop Rock, Teen Pop, Folk
August 31 - Out of the Woods Robert Moody, Jack Antonoff, Alan Billingsley, Jack Michael Antonoff, Nickel Creek, Taylor Swift Ukelele, Piano, Gitaar, Tenor, Tenorsaxofoon, Elektrische gitaar Dance-pop, Pop, Country Pop, Podium & Scherm, Folk
Out Of Town Girl Liam Horne, Graham Edwards, Lamar Stovall, Justin Bieber, Kenneth Coby Piano, Gitaar Pop, Dance-pop, Pop Rock, Teen Pop, Folk
Our Year Hanna Jones, Jack Kugell, Jack David Kugell, Matt Wong Piano Teen Pop, Pop, Soundtrack, Kinderen, Musical
Overprotected Rami Yacoub, Britney Spears, Max Martin Piano, Gitaar, Elektrische gitaar Dance-pop, Teen Pop, Dans, Pop, Folk
Out Of The Old Jordan Powers, Josh Cumbee, Olivia Rodrigo Piano, Gitaar Musical, Pop, Teen Pop, Soundtrack, Podium & Scherm
Overboard Justin Bieber, Dapo Torimiro, Oladapo Torimiro, Ingrid Michaelson, Taurian Shropshire, Waynne Nugent Gitaar, Piano Hedendaagse R&B, Pop, Dance-pop, Pop Rock, Rock
Over The Wall Gregory Carl Christian, Eric Peterson, Steven Souza, Alex Skolnick, Debbie Gibson, Deborah Gibson Gitaar, Piano Pop, Teen Pop, Folk, Dance-pop, Metaal
Overload Cameron McVey, Felix Howard, Keisha Buchanan, John Legend, Paul Simm, Siobhan Donaghy Gitaar, Piano, Elektrische gitaar Pop, Dance-pop, Pop Rock, Teen Pop, Ziel
Our Time Is Here Jonas Brothers, Antonina Armato, Tim James, Demi Lovato Gitaar, Piano Kinderen, Musical, Folk, Soundtrack, Teen Pop
Over Again One Direction, Alexander Gowers, Ed Sheeran, Robert Conlon Gitaar, Piano Teen Pop, Dance-pop, Folk, Pop Rock, Pop
Paranoid Jesse Vest, Geezer Butler, Avenged Sevenfold, Terence 'Geezer' Butler, Anthony Iommi, John Fields Tenor, Sopraansaxofoon, Altviool, Sopraan, Bariton, Baritonsaxofoon Teen Pop, Rock, Folk, Hard Rock, Jazz
Out of My Heart Christian Burns, BBMak, Anthony Griffiths, Mark Barry, Stephen McNally, Mark Berry Gitaar, Piano, Ukelele Boyband, Teen Pop, Pop, Folk, Rock
Particular Taste Ryan Tedder, Shawn Mendes, Zach Skelton Piano, Gitaar, Elektrische gitaar Pop Rock, Teen Pop, Pop
Part Of Me Dr. Luke, Aaron Mason, Roger Emerson, Bonnie McKee, Max Martin, Justin Paul Gitaar, Piano, Bas, Altviool, Sopraan, Tenor Broadway, Teen Pop, Dance-pop, Musical, Pop
Over It Ruth-Anne Cunningham, Billy Steinberg, Katharine McPhee, Josh Alexander, Tori Amos Piano, Gitaar Pop Rock, Pop, Rock, Alternatief, Rhythm & Blues
