Unique Kris Allen, Rune Westberg, Jason Bradford Reeves, Lenka Kripac Drum Set, Drums Pop, Alternative Rock, Pop Rock
Unknown Jacob Akinoso, Jacob Banks, Música al Piano, John Newman, Timothy Mosely, Jose Angel Velazquez Piano, Guitar Pop, Folk, Rhythm & Blues, Soul
Unreachable Billy Mann, Ashlee Simpson, Robbie Nevil, Stan Frazier, Steve Fox Electric guitar, Guitar, Piano Teen Pop, Pop, Dance-pop, Folk
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
Un Sentimental Julio Iglesias, Rafael Ferro, Ramon Arcusa Piano Folk, Jazz, Adult Contemporary, Pop, Latin
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
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 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
Upper Manhattan Medical Group Jack Grassel, Billy Strayhorn, Matt Belzer Bass, Soprano Saxophone, Viola, Tenor, Baritone, Soprano Folk, Jazz, Pop
Unshakable Kingdom William Gaither, Bill Gaither, Gloria Gaither, Michael W. Smith, Sandi Patty, William J. Gaither Piano, Guitar Gospel, Pop, Contemporary Christian, Folk
