Unnatural Selection Jennifer Lindberg, Matthew Bellamy Klavier, Cello, Bratsche, Altsaxophon, Harfe, Schlagzeug Art-Rock/Progressive, Pop, Alternative Pop/Rock, Indie-Rock, Alternative
Unsainted Craig Jones, Corey Taylor, Sidney Wilson, James Root, Alessandro Venturella, M. Shawn Crahan Gitarre, E-Gitarre, Schlagzeug Metall, Rock
Unsatisfied Paul Westerberg, The Replacements Gitarre, E-Gitarre Pop Rock, Punk, Rock, Alternative, Pop
Under This Moon Nick Cave E-Gitarre, Gitarre, Klavier Rock, Pop, Volksmusik, Alternative, Alternative Pop/Rock
Undertow Adam Jones, Tony Banks, Daniel Carey, Friedrich Burgmüller, Maynard James Keenan Gitarre, Klavier Metall, Soft Rock, Volksmusik, Pop Rock, Pop
Undiscovered Emile Haynie, Martin Brammer, Ashlee Simpson, Amanda Ghost, Devonte Hynes, Steve Robson Gitarre, Klavier, E-Gitarre Indie Pop, Bühne & Leinwand, Soundtrack, Musical, Pop Rock
Unsaid Things Thomas Fletcher, Daniel Jones, Harry Judd, Danny Jones, James Elliot Bourne, Harry Mark Christopher Judd Gitarre, Klavier, E-Gitarre Alternative Pop/Rock, Rock, Pop Rock, Punk-Pop, Pop
Unsaveable Bobby Terry, Bekka Bramlett, Faith Hill Klavier, Gitarre Pop, Erwachsene Contemporary-Musik, Country Pop, Rock, Zeitgenössisches Country
Unskinny Bop Bruce Johannesson, Bret Michaels, Brett Michaels, Poison, C. C. DeVille, Bobby Dall Klavier, Gitarre Metall, Glam Rock, Heavy Metal, Hair-Metal, Hard Rock
Unsteady Adam Levin, Alexander Grant, Alexander Junior Grant, Casey Harris, Addison Horner, Noah Feldshuh Klavier, Gitarre, Sopran, Bratsche, Schlagzeug, Bass Pop, Indie Electronic, Alternative Pop/Rock, Rock, Volksmusik
Until The World Goes Cold Michael Baskette, Corey Beaulieu, Paolo Gregoletto, Matthew Heafy Gitarre Volksmusik, Pop, Pop Rock, Rock
Untitled Finale Alexander Varkatzas, Travis Miguel, Daniel Jacobs, Brandon Saller, Marco McKnight Gitarre, E-Gitarre Metall, Rock, Pop, Volksmusik, Pop Rock
Untitled I Richard Hughes, Tom Chaplin, Tim Rice-Oxley Gitarre, Klavier Piano Rock, Erwachsene Alternative, Britpop, Alternative Rock, Alternative Pop/Rock
Up Adam Messinger, Demi Lovato, Daniel Davidsen, Robert Lange, Mich Hansen, Maegan Cottone Gitarre, Klavier, Bassgitarre, Marimba, Kontrabass, Bass Folk Welt und Land, Bühne & Leinwand, Pop Rock, Dance-Pop, Country
Up Against The Wall Brad Daymond, Justin Timberlake, Alex Greggs, Jc Chasez, Tom Robinson Gitarre, Klavier Pop, Pop Rock, Rock, Volksmusik
Instrumental Duet - Up on the Housetop Francesco Leone, Carolyn Dawn Gardner, Ester Alessandrini, B.R. Handy, Allen Pote, Big Bill Durham Klavier, Gitarre, Oboe, Violine, Tuba, Altsaxophon Bühne & Leinwand, Evangelium, Blues, Jazz, Volksmusik
