One Vision Brian May, Freddie Mercury, John Deacon, Philip Lawson, Roger Taylor, Queen Piano, Guitar, Electric guitar, Bass, Drums Art-Rock/Progressive, Pop, Hard Rock, Album Rock, Glam Rock
Only a Fool Rich Robinson, Chris Robinson, The Black Crowes Guitar, Electric guitar Hard Rock, Rock, Pop
Operation: Mindcrime Michael Wilton, Chris DeGarmo, Geoff Tate Guitar Metal, Album Rock, Rock, Progressive Metal, Hard Rock
ORDINARY MAN Billy Walsh, Ozzy Osbourne, Elton John, Duff McKagan, Chad Smith, Andrew Watt Guitar, Piano, Electric guitar Album Rock, Gospel, Hard Rock, Pop Rock, Pop
Our Country John Cougar Mellencamp, John Mellencamp Guitar, Piano, Electric guitar Pop, Country, Hard Rock, Rock, Rock N Roll
Our Lives Elaine Yu, Aaron Kamin, The Calling Piano, Guitar Adult Alternative, Hard Rock, Indie Rock, Folk, Pop
Our Truth Cristiano Migliore, Cristina Scabbia, Cristiano Mozzati, Andrea Ferro, Lacuna Coil, Marco Biazzi Electric guitar, Guitar Black Metal, Goth Metal, Pop, Progressive Metal, Metal
Outcry Jordan Rudess, John Myung, John Petrucci, Dream Theater Bass guitar, Guitar, Bass Heavy Metal, Hard Rock, Pop, Progressive Metal, Art-Rock/Progressive
I Want to Be Out of My Depth in Your Love Noel Richards, Art Alexakis, Doug Horley Piano, Guitar Gospel, Alternative Pop/Rock, Alternative Rock, Pop Rock, Indie Rock
Overlord Black Label Society, Zakk Wylde Guitar Folk, Pop Rock, Heavy Metal, Hard Rock, Southern Rock
Open Fire Justin Hawkins, Daniel Hawkins, Lef Germenlis, The Darkness Guitar Rock, Glam Rock, Hard Rock
Out of Line Samuel Endicott, Keith Nelson, Jimmy Ashhurst, Stevie D., Sam Endicott, The Bravery Guitar, Electric guitar Alternative Metal, Metal, American Trad Rock, Pop, Rock
Out of the Cradle Alex Lifeson, Geddy Lee Guitar, Electric guitar Arena Rock, Hard Rock, Art-Rock/Progressive, Album Rock, Pop
Outshined Chris Cornell Guitar, Electric guitar, Drum Set, Drums Metal, Grunge, alternative, Pop Rock, Alternative Pop/Rock
Outta Space Alex Van Halen, Van Halen, David Lee Roth, Eddie Van Halen, Wolfgang Van Halen, Edward Van Halen Guitar Arena Rock, Album Rock, Heavy Metal, Rock, Hard Rock
Owner Of A Lonely Heart Trevor Rabin, Chris Squire, Trevor Horn, Jon Anderson, Yes Ukulele, Guitar, Piano, Electric guitar, Bass guitar, Bass punk, Progressive Rock, Arena Rock, Album Rock, Dance-pop
Outside The Wall Roger Waters, Pink Floyd Guitar, Electric guitar Pop Rock, Progressive Rock, Psychedelic Rock, Pop, Folk
Our Love Was Is Pete Townshend, Peter Townshend, The Who Guitar, Piano, Electric guitar Hard Rock, Pop Rock, Folk, Pop, Rock
