- U & Ur Hand - Pink
- U Ain't Goin Nowhere - Young Buck
- U Already Know - 112
- U and Dat [w/E-40 & Kandi Girl] - T-Pain
- U and Dat [w/T-Pain & Kandi Girl] - E-40
- U Can't Touch This - Hammer, MC
- U Don't Have to Call - Usher
- U Don't Know Me - TI
- U Don't Know Me (Like U Used To) - Brandy
- U Got It Bad - Usher
- U Got That Love - Levert, Gerald
- U Got the Look [w/Prince] - Easton, Sheena
- U Got the Look [w/Sheena Easton] - Prince
- U Know What's Up - Jones, Donell
- U Make Me Better - Bice, Bo
- U Make Me Wanna - Blue
- U Make Me Wanna [w/Jadakiss] - Carey, Mariah
- U Make Me Wanna [w/Mariah Carey] - Jadakiss
- U R the Best Thing - Dream
- U Remind Me - Usher
- U Send Me Swingin' - Mint Condition
- U Should've Known Better - Monica
- U Sure Do - Strike
- U Will Know - BMU
- U-haul - Stone, Angie
- U-Turn - Usher
- U.N.I.T.Y. - Queen Latifah
- U16 Girls - Travis
- UFO - Sneaky Sound System
- Ugly - Exies, The
- Ugly - Sparxxx, Bubba
- Ugly - Sugababes
- Ugly Girl - Fleming & John
- Uh Huh - B2K
- Ullo John Got a New Motor - Sayle, Alexei
- Ultimate Love - Vassar, Phil
- Ultraviolet - McFly
- Ulysses - Ferdinand, Franz
- Umbrella [w/Jay-Z] - Rihanna
- Umbrella [w/Rihanna] - Jay-Z
- Umma Do Me - Rocko
- Un Amor Asi - Nieves, Tito
- Un Amor para la Historia - Santa Rosa, Gilberto
- Un Beau Grand Bateau [Boulet] - Ethnic - French
- Un Buen Perdedor - De Vita, Franco
- Un Chin Chin - Cruz, Charlie
- Un Hombre Secreto - Hernandez, Miriam
- Un Idiota - Sebastian, Joan
- Un Lugar Celestial - Vel
- Un Mont - Gilberto Santa Rosa
- Un Peu D'innocence [Deshalme] - Ethnic - French
- Un Peu De Soleil Dans Notre Vie [Valiquette] - Ethnic - French
- Un Siglo Sin Ti - Chayanne
- Un Sueno - Los Angeles de Charly
- Un Te Amo - Miguel, Luis
- Una Emoci - Ramazzotti, Eros
- Una L - Los Temerarios
- Una Mujer - Aguilera, Christina
- Una Mujer Como T - Los Rieleros del Norte
- Una Vez Mas - Conjunto Primavera
- Una Voz en el Alma - Millie
- Unanswered Prayers - Brooks, Garth
- Unappreciated - Cherish
- Unashamed - Houston, Whitney
- Unbeautiful - Roy, Lesley
- Unbelievable - Brown, Kaci
- Unbelievable - EMF
- Unbelievable - David, Craig
- Unbelievable - Diamond Rio
- Unbreak My Heart - Braxton, Toni
- Unbreak My Heart (dance mix) - Braxton, Toni
- Unbreakable - Keys, Alicia
- Unbreakable - Westlife
- Unbreakable (unplugged) - Keys, Alicia
- Unbreakable Heart - Carter, Carlene
- Unbreakable Heart - Andrews, Jessica
- Unbroken - McGraw, Tim
- Unbroken By You - Kayle, Kortney
- Unbroken Ground - Nichols, Gary
- Unchain My Heart - Cocker, Joe
- Unchain My Heart - Charles, Ray
- Unchain the Night - Dokken
- Unchained - Van Halen
- Unchained Melody - Presley, Elvis
- Unchained Melody - Rimes, LeAnn
- Unchained Melody - Nelson, Willie
- Unchained Melody - Gates, Gareth
- Unchained Melody - Righteous Brothers, The
- Uncle Albert / Admiral Halsey - McCartney, Paul
- Uncle John from Jamaica - Vengaboys, The
- Uncle John's Band - Grateful Dead, The
- Uncle Pen - Skaggs, Ricky
- Uncle Tom's Cabin - Warrant
- Uncloudy Day, The - Nelson, Willie
- Unconditional - Collins, Simon
- Unconditional - Bravery, The
- Unconditional - Davidson, Clay
- Unconditional Love - Summer, Donna
- Uncountrify Me - Michael, Barry
- Undefeated - Derulo, Jason
- Undeniable - Kearney, Mat
- Under - Pleasure P
- Under My Thumb - Rolling Stones, The
- Under My Wheels - Cooper, Alice
- Under Pressure (Ice Ice Baby) [ft.Vanilla Ice] - Jedward
- Under Pressure (Ice Ice Baby) [Jedward mashup] - Bowie, David
- Under Pressure (Ice Ice Baby) [Jedward mashup] - Vanilla Ice
- Under Pressure (Ice Ice Baby) [Jedward mashup] - Queen
- Under Pressure [w/David Bowie] - Queen
- Under Pressure [w/My Chemical Romance] - Used, The
- Under Pressure [w/Queen] - Bowie, David
- Under Pressure [w/The Used] - My Chemical Romance
- Under the Boardwalk - Drifters, The
- Under the Boardwalk - Midler, Bette
- Under the Bridge - Red Hot Chili Peppers
- Under the Bridge - All Saints
- Under the Hood - Cyrus, Billy Ray
- Under the Milky Way - Church, The
- Under the Moon of Love - Showaddywaddy
- Under the Same Sun - Scorpions, The
- Under the Sun - Cheryl
- Under the Sun - Cole, Cheryl
- Under the Thumb - Studt, Amy
- Under the Water - Bainbridge, Merrill
- Under the Weather - Tunstall, KT
- Under the Westway - Blur
- Under Your Spell - Benson, Amber
- Under Your Spell Again - Owens, Buck
- Under Your Thumb - Godley & Cr
- Undercover - Hayes, Gemma
- Undercover Angel - O'Day, Alan
- Undercover of the Night - Rolling Stones, The
- Underdog - Show Tunes - TV
- Underdog - Loeb, Lisa & Nine Stories
- Underneath - Morissette, Alanis
- Underneath It All [w/Lady Saw] - No Doubt
- Underneath the Arches - Standards
- Underneath the Radar - Underworld
- Underneath the Stars - Carey, Mariah
- Underneath Your Clothes - Shakira
- Understand Your Man - Cash, Johnny
- Understanding - Xscape
- Undisclosed Desires - Muse
- Undiscovered - Morrison, James
- Undo It - Underwood, Carrie
- Undone-The Sweater Song - Weezer
- Undun - Guess Who, The
- Uneasy Rider - Charlie Daniels Band, The
- Unexpected Love - Esnavi
- Unfaithful - Rihanna
- Unfinished Sympathy - Massive Attack
- Unforgettable - Cole, Nat 'King'
- Unforgettable Fire, The - U2
- Unforgettable [duet w/Natalie Cole] - Cole, Nat 'King'
- Unforgettable [w/Nat 'King' Cole] - Cole, Natalie
- Unforgivable Sinner - Martin, Lene
- Unforgiveable Sinner - Marlin, Lene
- Unforgiven - Go-Go's, The
- Unforgiven - Lawrence, Tracy
- Unforgiven, The - Metallica
- Unicorn Song, The - Irish Rovers
- Unicorn Song, The [Irish Rovers] - Ethnic - Irish
- Unicorn, The - Ethnic - Irish
- Unicorn, The - Traditional
- Uninvited - Morissette, Alanis
- Uninvited [w/Bailey Tzuke] - Freemasons
- Union City Blue - Blondie
- Union of the Snake - Duran Duran
- United States Air Force Song, The - Standards
- United States of Whatever - Lynch, Liam
- United We Stand - Brotherhood of Man
- Universal Mind Control [w/Common] - Williams, Pharrell
- Universal Mind Control [w/Common] - Pharrell
- Universal Mind Control [w/Pharrell] - Common
- Universally Speaking - Red Hot Chili Peppers
- Unkind - Hurt
- Unknown Soldier, The - Doors, The
- Unleash the Dragon - Sisqo
- Unlikely Angel - Jones, Jason
- Unloved - Brooks & Dunn
- Unpredictable [w/Jamie Foxx] - Ludacris
- Unpredictable [w/Ludacris] - Foxx, Jamie
- Unpretty - TLC
- Unsent - Morissette, Alanis
- Unskinny Bop - Poison
- Unstable - Adema
- Unsung - Helmet
- Unsung Hero - Clark, Terri
- Untangle My Heart - Brown, Shannon
- Unthinkable (I'm Ready) - Keys, Alicia
- Until I Fall Away - Gin Blossoms, The
- Until I Find You Again - Marx, Richard
- Until I Get Over You - Branch, Michelle
- Until I Met You - Rodman, Judy
- Until It Sleeps - Metallica
- Until It's Time for You to Go - Presley, Elvis
- Until My Dying Day - UB40
- Until the Day I Die - Story of the Year
- Until the End - Breaking Benjamin
- Until the End of the World - U2
- Until the End of Time - Foreigner
- Until the End of Time - Shakur, Tupac
- Until the End of Time [w/Beyonc - Timberlake, Justin
- Until the End of Time [w/Justin Timberlake] - Beyonc
- Until the Real Thing Comes Along - Sinatra, Frank
- Until the Time Is Through - Five
- Until We Fall Back in Love Again - Carson, Jeff
- Until You Come Back to Me - Franklin, Aretha
- Untitled (How Can This Happen to Me) - Simple Plan
- Untitled (How Does It Feel) - D'Angelo
- Untold Stories - Mattea, Kathy
- Untouchable - Swift, Taylor
- Untouchable - Girls Aloud
- Untouchable [acoustic] - Swift, Taylor
- Untouched - Veronicas, The
- Unusual Kiss, An - Etheridge, Melissa
- Unusually Unusual - Lonestar
- Unwanted - Lavigne, Avril
- Unwed Fathers - Wynette, Tammy
- Unwell - Matchbox Twenty
- Unwound - Strait, George
- Unwritten - Bedingfield, Natasha
- Up - Saturdays, The
- Up & Down - Cox, Deborah
- Up Against All Odds - Ramsey, Tarralyn
- Up Against the Wall You Redneck - Walker, Jerry Jeff
- Up All Night - Slaughter
- Up All Night - Unwritten Law
- Up All Night - Pardi, Jon
- Up All Night - Take That
- Up All Night - Blink 182
- Up All Night - Hinder
- Up Around the Bend - Creedence Clearwater Revival
- Up Down - Mauboy, Jessica
- Up North (Down South, Back East, Out West) - Hayes, Wade
- Up on Cripple Creek - Band, The
- Up on the Housetop - Christmas
- Up on the Roof - Drifters, The
- Up on the Roof - Taylor, James
- Up on the Roof - Robson & Jerome
- Up the Junction - Squeeze
- Up the Ladder to the Roof - Supremes, The
- Up This High - Moorer, Allison
- Up to Him - Lawrence, Tracy
- Up Town Top Ranking - Alisha & Donna
- Up Up & Away - Humperdinck, Engelbert
- Up Up Up - Falcon, Rose
- Up Where We Belong [w/Jennifer Warnes] - Cocker, Joe
- Up Where We Belong [w/Joe Cocker] - Warnes, Jennifer
- Up [w/James Morrison] - Jessie J
- Up [w/Jessie J] - Morrison, James
- Up! - Twain, Shania
- Up! (country version) - Twain, Shania
- Up, Up & Away - 5th Dimension, The
- Upgrade U [w/Beyonc - Jay-Z
- Upgrade U [w/Jay-Z] - Beyonc
- Upper Middle Class White Trash - Brice, Lee
- Uprising - Muse
- Upside Down - Johnson, Jack
- Upside Down - Ross, Diana
- Upside of Being Down, The - Britt, Catherine
- Upstairs Downtown - Keith, Toby
- Uptight (Everything's Alright) - Wonder, Stevie
- Uptown - Crystals, The
- Uptown Girl - Westlife
- Uptown Girl - Joel, Billy
- Urgent - Foreigner
- Us - Dion, Celine
- Us - Sixpence None the Richer
- Us Against the World - Play
- Us Against the World - Westlife
- Us Against the World - Milian, Christina
- Us and Them - Pink Floyd
- Us Forces - Midnight Oil
- US Male - Presley, Elvis
- USA Today - Jackson, Alan
- USA Today [George Jones] - Patriotic
- USA Today [Hank Williams Jr.] - Patriotic
- Use It Up and Wear It Out - Odyssey
- Use Me - Withers, Bill
- Use Mine - Wood, Jeff
- Use Somebody - Kings of Leon
- Use to Be My Girl - O'Jays, The
- Use Your Heart - SWV [Sisters with Voices]
- Used to Be My Girl - McKnight, Brian
- Used to Blue - Sawyer Brown
- Used to Love Her - Guns n' Roses
- Used to Love U - Legend, John
- Used to the Pain - Nesler, Mark
- Used to the Pain - Lawrence, Tracy
- Usted Abus - Cruz, Celia
- Ute Me - Kernaghan, Lee
- Utility - Utility