On The Floor Achraf Janussi, Bilal Hajji, Ulises Hermosa, Kinnda Hamid, Gonzalo Hermosa, Jennifer Lopez Piano, Guitar Dance, Adult Contemporary, Folk, Hip Hop, Pop Rock
Ooh Jason Sellards, Derek Gruen, Jamison Mechalie, Mary J, Scissor Sisters, Sean Combs Piano, Electric guitar, Guitar Club/Dance, Dance-pop, Folk, Disc, Hip Hop
Ooh Ooh Baby Kara DioGuardi, Eric Coomes, Britney Spears, Fred Nassar Guitar, Piano, Electric guitar Dance-pop, Folk, Dance, Pop, Pop Rock
Open Your Heart Andreas Carlsson, Georges Bizet, Daniel Brewbaker, Gardner Cole, Jill Johnson, Dean Pitchford Viola, Violin, Cello, Guitar, Piano, Electric guitar Opera, Musical, Folk, Pop, Stage & Screen
Opposites Attract George Hutchinson, Billie Myers, Oliver Leiber, Paula Abdul Piano, Guitar, Electric guitar Dance-pop, Pop, Adult Contemporary, Club/Dance, Folk
Orange Trees Erik Persson Hassle, Jakob Jerlström, Oscar Goerres, Marina Diamandis, Erik Hassle Piano, Guitar Folk, Dance-pop, Pop, Electronic
Ordinary World Billie Joe Armstrong, Simon Le Bon, John Taylor, Duran Duran, Green Day, Simon LeBon Piano, Guitar, Electric guitar Pop Rock, Folk, Dance-pop, Pop, Rock
Original Of The Species Electric guitar, Guitar, Piano Dance-pop, Adult Alternative, Pop, Pop Rock, Rock
Origin Of Love Nicholas Littlemore, Mika, Paul Steele Guitar, Piano Dance-pop, Dance, Pop, Folk, Pop Rock
Original Sin Andrew Charles Farriss, Elton John, Andrew Farriss, Michael Hutchence, Bill Bruford, Michael Kelland John Hutchence Piano, Double Bass, Soprano Saxophone, Guitar, Electric guitar Pop, Album Rock, College Rock, Rock, Jazz
Our Own House Amanda Lee Duffy, Mandy Lee Duffy, Nicholas Wright, Martin Terefe, Shawn Salley Piano Alternative Dance, Dance-pop, Indie Pop, Pop
One Kiss Dove Cameron, Calvin Harris, Adam Wiles, Jessica Reyes, Nathaniel Shilkret, Jessie Reyez Piano, Guitar, Ukulele, Medium voice, Electric guitar Pop, Blues, Classical, Club/Dance, Folk
One Man One Woman Benny Andersson, Bjorn Ulvaeus Guitar, Piano Pop Rock, Disc, Dance-pop, Europop, Pop
Our Last Summer Benny Andersson, Bjorn Ulvaeus, Bee Clark, ABBA Piano, Guitar, Electric guitar, Electronic keyboard, Organ Broadway, Dance, Musical, Folk, Europop
Out Of Touch John Oates, Daryl Hall, hall Piano, Guitar, Electric guitar New Wave, Pop, Soft Rock, Blue-Eyed Soul, Adult Contemporary
August 31 - Out of the Woods Robert Moody, Jack Antonoff, Alan Billingsley, Jack Michael Antonoff, Nickel Creek, Taylor Swift Piano, Ukulele, Guitar, Electric guitar, Tenor Saxophone, Tenor Stage & Screen, Dance-pop, Teen Pop, New Age, Folk
Out Of Town Girl Liam Horne, Graham Edwards, Lamar Stovall, Justin Bieber, Kenneth Coby Piano, Guitar Teen Pop, Dance-pop, Pop, Folk, Pop Rock
Outside Adam Wiles, Dave Grohl, Ellie Goulding, Calvin Harris, Nate Mendel, Aaron Lewis Oboe, Cello, Piano, Flute, Violin, Guitar Funk, Club/Dance, Synth-pop, Dance-pop, Rock
Out Of My League Noelle Scaggs, John Meredith Wicks, James King, Michael Fitzpatrick, fitz, John Wicks Guitar, Piano Alternative Pop/Rock, Dance-pop, Folk, Pop Rock, Indie Pop
Out Of Reach Dream Theater, John Petrucci, Jonathan Shorten, Elizabeth Ragsdale, Michael Mangini, Gabrielle Guitar, Piano, Flute, Electric guitar, Clarinet, Violin Stage & Screen, Pop Rock, Folk, Pop, Dance-pop
