On Hold Oliver Sim, James Smith, Sara Allen, Daryl Hall, The XX, Romy Croft Guitarra, Piano, Guitarra elétrica Indie Eletrônico, Indie Pop, Eletrônico, Alternativa, Folclore
Only The Horses Scissor Sisters, Amanda Ghost, Alexander Ridha, Jason Sellards, Scott Hoffman Guitarra, Piano Dança, Dance-pop, Dança Alternativa, Indie Pop, Pop/Rock Alternativo
Only If For A Night Paul Epworth, Florence Welch Piano, Guitarra Pop, Rock, Indie Rock, Alternativa, Folclore
On Your Own Graham Coxon, Alex James, Richard Ashcroft, Damon Albarn, Luke McMaster, Nick McCabe Piano, Guitarra, Guitarra elétrica Brit-Pop, Indie, Pop, Folclore, Pop Rock
Opportunity William Gluck, Jason Robert Brown, The Music, Juan Villodre, Yeah Yeah Yeahs, Charles Strouse Guitarra, Piano, Orquestra, Guitarra elétrica Indie Pop, Rock, Pop, Musical, Infantil
Orange Juice Melanie Martinez, Michael Keenan Leary, Dario D'aversa, Steven King Guitarra Folclore Mundo e País, Pop, Indie Pop, Pop/Rock Alternativo
One Foot Andrew Dost, Jack Antonoff, Nate Ruess, Emile Haynie Guitarra, Piano Pop, Indie, Folclore, Pop/Rock Alternativo, Indie Rock
Open Up Your Arms Ren Harvieu Guitarra, Piano Alternativa Adulta, Folclore, Indie Pop, Pop/Rock Alternativo, Pop
Out Of My League Noelle Scaggs, John Meredith Wicks, James King, Michael Fitzpatrick, fitz, John Wicks Piano, Guitarra Folclore, Pop/Rock Alternativo, Pop Rock, Indie Pop, Dance-pop
Oscillate Wildly Johnny Marr, Steven Morrissey, The Smiths Guitarra, Piano, Percussão, Baixo, Violoncelo, Bateria College Rock, Pop Rock, Britpop, Jangle-Pop, Indie Pop
Out On The Town Jennifer Diana, Emile Haynie, Nate Ruess, Andrew Dost, Jack Antonoff Guitarra, Piano, Coral SATB, Refrão Rock Alternativo, Pop, Pop Rock, Pop/Rock Alternativo, Indie
Over It Over Again Zooey Deschanel, HIM Guitarra, Piano Indie, Indie Pop, Alternativa Adulta, Alternativa, Folclore
Our Own House Amanda Lee Duffy, Mandy Lee Duffy, Nicholas Wright, Martin Terefe, Shawn Salley Refrão, Coral TTB, Piano Indie Pop, Dança Alternativa, Dance-pop, Pop
OverHeated Finneas O'Connell, Billie Eilish O'Connell, Billie Eilish, Billie O'Connell Guitarra, Piano, Guitarra elétrica Folclore, Electropop, Pop/Rock Alternativo, Alternativa, Pop
Packt Like Sardines In A Crushd Tin Box Ed O'Brien, Colin Greenwood, Phil Selway, Edward O'Brien, Philip Selway, Thom Yorke Guitarra, Piano Eletrônico, Alternativa, Pop/Rock Alternativo, Rock Alternativo, Rock Progressivo
Pacify Her Douglas Becker, Chloe Angelides, Michael Keenan Leary, Melanie Martinez Guitarra, Guitarra elétrica Indie Pop, Rock, Pop, Folclore
Ours Sam Endicott, Daniel Wilson, Caitlin P. Flemm, Dan Wilson, Taylor Swift, Samuel Endicott Guitarra, Refrão, Piano, Coral da SSA Palco & Tela, Pop/Rock Alternativo, Broadway, Jazz, Easy Listening
Oxytocin Billie Eilish O'Connell, Billie O'Connell, Finneas O'Connell, Billie Eilish Guitarra, Piano, Guitarra elétrica Alternativa, Electropop, Infantil, Pop/Rock Alternativo, Indie Pop
Panic Room Jamie Stenzel, Andrew Frampton, Gabriel Benjamin Budin-Smithers, Max Farrar Guitarra, Piano Indie Pop, Eletrônico, Pop, Electropop, Folclore
Party Favor Billie O'Connell, Finneas O'Connell, Billie Eilish, Finneas Baird O'Connell Ukulele, Piano, Guitarra Pop/Rock Alternativo, Alternativa, Indie Pop, Pop Rock, Pop
