One Road Jussi Kontinen, Steven Lee Lukather, Randy Goodrum, Steve Lukather, David Paich, Sick Boy Tenor, Schlagzeug, E-Gitarre, Gitarre Pop, Pop Rock, Rock, Soft Rock
One Sweet World David J. Matthews, Dave Matthews Gitarre, E-Gitarre Volksmusik, Erwachsene Alternative, Jam Band, Alternative Pop/Rock, Amerikanischer Trad Rock
Ordinary Day Vanessa Carlton, Shaina Taub, Toby Anderson Klavier, Gitarre, E-Gitarre Pop, Pop Rock, Easy Listening, Rock, Erwachsene Contemporary-Musik
I Exalt Thee / Open the Eyes of My Heart Mark Hayes, Larry Shackley, Deborah Brady, Ken Medema, Stephen DeCesare, Paul Baloche Gitarre, Klavier, Violine, Flöte, Cello, Ukulele Pop Rock, Evangelium, Bühne & Leinwand, Rock, Pop
Original Sin Andrew Charles Farriss, Elton John, Andrew Farriss, Michael Hutchence, Bill Bruford, Michael Kelland John Hutchence Gitarre, E-Gitarre, Klavier, Kontrabass, Sopran-Saxophon Neue Welle, Dance-Pop, Volksmusik, Jazz, College Rock
Orion Cliff Burton, Metallica, James Hetfield, Gabriela Quintero Lopez, Lars Ulrich, Rodrigo y Gabriela Gitarre, E-Gitarre Hard Rock, Metall, Flamenco, Pop Rock, Folk Welt und Land
One Track Mind Eric Clapton, Craig Carnelia, The Knickerbockers, Marvin Hamlisch, Keith Colley, Kevin Colley Klavier, Gitarre, E-Gitarre Blues Rock, Blues, Pop, Musical, Bühne & Leinwand
One Vision Brian May, Freddie Mercury, John Deacon, Philip Lawson, Roger Taylor, Queen Klavier, Gitarre, Bass, E-Gitarre, Schlagzeug Album Rock, Rock, Art-Rock/Progressive, Progressive Rock, Glam Rock
Only Happy When It Rains Garrett Breeze, Butch Vig, Garbage, Nacio Herb Brown, Shirley Ann Manson, Doug Erickson Klavier, Gitarre, E-Gitarre Pop, Alternative Pop/Rock, Alternativer Tanz, Volksmusik, Alternative Rock
Orphan Girl Gillian Welch, Emmylou Harris, Emily Crocker Gitarre, Klavier Alternative Country, Pop Rock, Boogie Woogie, Erwachsene Alternative, Rock
Orpheus Franz Liszt, Franz Schubert, Heinrich Poos, Jacques Offenbach, Sara Bareilles, Tim Wheeler Bratsche, Cello, Violine, Orgel, Klavier, Gitarre Rock, Alternative, Pop Rock, Erwachsene Alternative, Indie
Opened Once Jeff Buckley Klavier, Gitarre Alternative Rock, Pop Rock, Alternative Pop/Rock, Erwachsene Alternative, Pop
Open Goals Leo Noncentelli, Ian Broudie, Arthur Neville, George Porter, The Lightning Seeds, Zigaboo Modeliste Gitarre, Klavier Rock, Pop Rock, Pop, Volksmusik
Operation: Mindcrime Michael Wilton, Chris DeGarmo, Geoff Tate Gitarre Progressive Metal, Album Rock, Heavy Metal, Hard Rock, Rock
