Unnatural Selection Jennifer Lindberg, Matthew Bellamy Trumpet, Oboe, Bass Clarinet, Clarinet, Flute, Guitar Alternative Rock, Art-Rock/Progressive, Progressive Rock, Britpop, Folk
Unsatisfied Paul Westerberg, The Replacements Guitar, Electric guitar alternative, Pop, Folk, Rock, Pop Rock
Under This Moon Nick Cave Guitar, Piano, Electric guitar Folk, alternative, Rock, Alternative Pop/Rock, Pop Rock
Undertow Adam Jones, Tony Banks, Daniel Carey, Friedrich Burgmüller, Maynard James Keenan Guitar, Piano Folk, Progressive Rock, Soft Rock, Album Rock, Pop
Undiscovered Emile Haynie, Martin Brammer, Ashlee Simpson, Amanda Ghost, Devonte Hynes, Steve Robson Piano, Guitar, Electric guitar Stage & Screen, Rock, Pop Rock, Pop, Indie Pop
Unique Kris Allen, Rune Westberg, Jason Bradford Reeves, Lenka Kripac Drum Set, Drums Pop, Alternative Rock, Pop Rock
Unsaid Things Thomas Fletcher, Daniel Jones, Harry Judd, Danny Jones, James Elliot Bourne, Harry Mark Christopher Judd Piano, Guitar, Electric guitar Pop Rock, Punk-Pop, Rock, Pop, Alternative Pop/Rock
Unskinny Bop Bruce Johannesson, Bret Michaels, Brett Michaels, Poison, C. C. DeVille, Bobby Dall Guitar, Piano Hard Rock, Heavy Metal, Folk, Glam Rock, Rock
Unsteady Adam Levin, Alexander Grant, Alexander Junior Grant, Casey Harris, Addison Horner, Noah Feldshuh Guitar, Piano, Tenor, Bass, Drums, Viola Folk, Indie Pop, Pop, Pop Rock, Rock
Until The World Goes Cold Michael Baskette, Corey Beaulieu, Paolo Gregoletto, Matthew Heafy Guitar Pop, Pop Rock, Rock, Folk
Untitled Finale Alexander Varkatzas, Travis Miguel, Daniel Jacobs, Brandon Saller, Marco McKnight Guitar, Electric guitar Metal, Folk, Rock, Pop, Pop Rock
Up Adam Messinger, Demi Lovato, Daniel Davidsen, Robert Lange, Mich Hansen, Maegan Cottone Xylophone, Harpsichord, Guitar, Electric guitar, Piano, Bass Folk World & Country, Pop, New Age, Pop Rock, Country
Up Against The Wall Brad Daymond, Justin Timberlake, Alex Greggs, Jc Chasez, Tom Robinson Guitar, Piano Rock, Folk, Pop Rock, Pop
Until The End Mark Klepaski, Aaron C. Fincke, The Nightwatchman, Benjamin Burnley, Aaron Fink, Mark J. Klepaski Guitar, Piano, Drum Set, Drums, Electric guitar Folk, Pop, Metal, alternative, Rock
Until The End Of The World The Edge Piano, Guitar Folk, Pop, Post-Punk, Alternative Pop/Rock, Dance-pop
untitled #1 Tim Rice-Oxley, Richard Hughes, Richard David Hughes, Timothy Johnson, Tom Chaplin Piano, Guitar, Flute, Violin, Alto Saxophone, Clarinet Piano Rock, Folk, Brit-Pop, Pop Rock, Rock
Unbelievable James Atkin, Jason Robert Brown, Irving Gordon, Jerry Livingston, Ian Dench, Derran Brownson Piano, Guitar, Electric guitar, Drums, Bass guitar Pop, Pop Rock, Broadway, Rock, Musical
Unbelievers Susanne Hug, Jake Kyle, Paul Wigens Electric guitar, Guitar Rock, Folk, Pop Rock, Britpop
