Unique Kris Allen, Rune Westberg, Jason Bradford Reeves, Lenka Kripac Bateria Pop, Pop Rock, Rock Alternativo
Unknown Jacob Akinoso, Jacob Banks, Música al Piano, John Newman, Timothy Mosely, Jose Angel Velazquez Piano, Guitarra Pop, Folclore, Soul, Rhythm & Blues
Unreachable Billy Mann, Ashlee Simpson, Robbie Nevil, Stan Frazier, Steve Fox Piano, Guitarra, Guitarra elétrica Dance-pop, Pop, Folclore, Teen Pop
Unsaid Things Thomas Fletcher, Daniel Jones, Harry Judd, Danny Jones, James Elliot Bourne, Harry Mark Christopher Judd Guitarra, Piano, Guitarra elétrica Folclore, Pop Rock, Pop/Rock Alternativo, Rock, Pop
Unsaveable Bobby Terry, Bekka Bramlett, Faith Hill Piano, Guitarra Country Contemporâneo, Country Pop, Pop, Adulto Contemporâneo, Rock
Un Sentimental Julio Iglesias, Rafael Ferro, Ramon Arcusa Piano Adulto Contemporâneo, Pop, Folclore, Jazz, Latim
Unskinny Bop Bruce Johannesson, Bret Michaels, Brett Michaels, Poison, C. C. DeVille, Bobby Dall Piano, Guitarra Hair-Metal, Glam Rock, Heavy Metal, Pop Rock, Hard Rock
Unsteady Adam Levin, Alexander Grant, Alexander Junior Grant, Casey Harris, Addison Horner, Noah Feldshuh Piano, Guitarra, Soprano, Viola, Bateria, Baixo Indie Pop, Pop Rock, Pop, Pop/Rock Alternativo, Indie Eletrônico
Until The World Goes Cold Michael Baskette, Corey Beaulieu, Paolo Gregoletto, Matthew Heafy Guitarra Folclore, Rock, Pop Rock, Pop
Untitled Finale Alexander Varkatzas, Travis Miguel, Daniel Jacobs, Brandon Saller, Marco McKnight Guitarra, Guitarra elétrica Metal, Pop, Folclore, Pop Rock, Rock
Untitled I Richard Hughes, Tom Chaplin, Tim Rice-Oxley Guitarra, Piano Britpop, Brit-Pop, Pop, Rock Alternativo, Alternativa Adulta
Unusual You Kasia Livingston, Pontus Johan Winnberg, Christian Lars Karlsson, Henrik Jonback Piano Pop
Up Adam Messinger, Demi Lovato, Daniel Davidsen, Robert Lange, Mich Hansen, Maegan Cottone Guitarra, Piano, Baixo, Marimba, Contrabaixo, Guitarra elétrica Nova Era, Country, Folclore, Dance-pop, Palco & Tela
Up Against The Wall Brad Daymond, Justin Timberlake, Alex Greggs, Jc Chasez, Tom Robinson Guitarra, Piano Rock, Pop, Pop Rock, Folclore
Instrumental Duet - Up on the Housetop Francesco Leone, Carolyn Dawn Gardner, Ester Alessandrini, B.R. Handy, Allen Pote, Big Bill Durham Piano, Guitarra, Oboé, Violino, Tuba, Saxofone Alto Clássica, Folclore Mundo e País, Palco & Tela, R&B Contemporâneo, Blues
Upper Manhattan Medical Group Jack Grassel, Billy Strayhorn, Matt Belzer Saxofone Barítono, Saxofone Alto, Saxofone Tenor, Soprano, Barítono, Tenor Jazz, Pop, Folclore
Unshakable Kingdom William Gaither, Bill Gaither, Gloria Gaither, Michael W. Smith, Sandi Patty, William J. Gaither Guitarra, Piano Cristão contemporâneo, Folclore, Pop, Gospel
