Unnatural Selection Jennifer Lindberg, Matthew Bellamy Trumpet, Oboe, Bass Clarinet, Clarinet, Flute, Guitar Alternative Rock, Art-Rock/Progressive, Progressive Rock, Britpop, Folk
Unsainted Craig Jones, Corey Taylor, Sidney Wilson, James Root, Alessandro Venturella, M. Shawn Crahan Guitar, Drums, Drum Set, Electric guitar Metal, Rock
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
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
Unsaveable Bobby Terry, Bekka Bramlett, Faith Hill Piano, Guitar Pop, Rock, Adult Contemporary, Contemporary Country, Country Pop
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
Untitled I Richard Hughes, Tom Chaplin, Tim Rice-Oxley Guitar, Piano Britpop, Adult Alternative, Brit-Pop, Piano Rock, Pop
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
Instrumental Duet - Up on the Housetop Francesco Leone, Carolyn Dawn Gardner, Ester Alessandrini, B.R. Handy, Allen Pote, Big Bill Durham Clarinet, Baritone, Violin, Tenor, Tenor Saxophone, Flute Blues, Rock, Jazz, Classical, Children
