One Step Closer Bon Jovi, Jeff Pescotto, Chester Bennington, Alan Menken, Carl Sturken, Keith Knudsen Piano, Guitarra, Baixo, Bateria, Guitarra elétrica Hard Rock, Metal Alternativo, Hip Hop, Folclore, Infantil
One Song Glory Mark Brymer, Richard Walters, Jonathan Larson Guitarra, Piano, Baixo, Soprano, Viola, Tenor Folclore, Palco & Tela, Pop, Rock, Trilha sonora
One Night Only Beyoncé Knowles, Mac Huff, Tom Eyen, Jennifer Hudson, Henry Krieger, Josey Scott Piano, Guitarra Musical, Rock, Palco & Tela, Pop, Broadway
One Normal Night Andrew Lippa, Talitha Broughton Piano, Guitarra, Saxofone Tenor, Saxofone Barítono, Saxofone Alto, Saxofone Soprano Musical, Broadway, Palco & Tela
One of the Great Ones Glenn Slater, Alan Menken Piano, Guitarra, Baixo, Bateria Palco & Tela, Pop, Broadway, Musical
One Short Day Stephen Schwartz, Roger Emerson Piano, Guitarra, Órgão, Teclado eletrônico Broadway, Musical, Palco & Tela, Metal
One Night Christina Perri, Danny Wood, Andrea Corr, Fran Healy, Brad Young, Anita Steiman Guitarra, Piano, Baixo, Bateria, Guitarra elétrica Folclore, Rock, Palco & Tela, Rock & Roll, Musical
Ol Man River Eugénie Rocherolle, J. Kern, Bettina Schipp, Andrea Bocelli, Elvis Presley, Oscar Hammerstein II Tenor, Piano, Soprano, Trombone, Viola, Ukulele Jazz, Palco & Tela, Rock, Country, Broadway
Only Girl Crystal Johnson, Mikkel Eriksen, The Music, Sandy Wilhelm, Mikkel S. Eriksen, Mikkel Storleer Eriksen Guitarra, Guitarra elétrica, Piano Pop Rock, Broadway, Dance-pop, Punk Rock e Emo, Rhythm & Blues
Only In New York Dick Scanlan, Jeanine Tesori, Ollie Wall Guitarra, Piano Musical, Broadway, Palco & Tela
Only Remembered J Farrow, Jake Alexander, Jamie Farrow, Rachel Atkinson, Ira D Sankey Broadway, Gospel, Palco & Tela
Only The Lonely James Van Heusen, Frank Sinatra, George Kaplan, Carol Decker, Jimmy Van Heusen, Jared Plane Piano, Guitarra, Bateria, Ukulele, Baixo Rockabilly, Rock, Rock N Roll, Country, Folclore
On My Own Adam Wade Gontier, John Caird, Burt Bacharach, Barry Stock, Adam Gontier, Carolyn Miller Oboé, Flauta doce, Violino, Piano, Flauta, Guitarra Folclore, Jazz, Rock, Country, Metal
On Broadway Cynthia Weil, Jim Beloff, Barry Mann, George Benson, Jerry Leiber, The Drifters Piano, Clarinete, Marimba, Violino, Guitarra, Flauta Brill Construindo Pop, Jazz, Blues, Doo Wop, Adulto Contemporâneo
Once Upon A Time Barri McPherson, Cole Porter, J.M. Jamison, Franz Steininger, Charles Strouse, James Pankow Violino, Piano, Guitarra, Guitarra elétrica, Clarinete, Viola Broadway, Soft Rock, Blues, Pop, Infantil
