Une belle histoire made famous by Michel Fugain
• 8 customizable audio tracks:
(Click, Drum Kit, Bass, Acoustic Guitar, Organ, Brass section, Backing Vocals, Lead Vocal)

Unruly Heart made famous by The Prom (musical)
• 15 customizable audio tracks:
(Intro Count (Click + Key), Click, Drum Kit, Bass, Acoustic Guitar, Arr. Acoustic Guitar, Electric Guitar, Electric Guitar, Piano, Electric Piano, String Section, Brass Instruments, Woodwinds, Backing Vocals, Lead Vocal)

Unknown Legend made famous by Neil Young
• 10 customizable audio tracks:
(Click, Drum Kit, Bass, Acoustic Guitar, Electric Guitar, Lap Steel Guitar, Piano, Harmonica, Backing Vocals, Lead Vocal)

Up, Up and Away made famous by The 5th Dimension
• 14 customizable audio tracks:
(Click, Drum Kit, Bass, Rhythm Acoustic Guitar, Lead Acoustic Guitar, Brass section, String Section, Harp, Wind Instruments, Female Lead Vocal, Female Lead Vocal, Female Lead Vocal, Male Lead Vocal, Male Lead Vocal)

Underneath Your Clothes made famous by Shakira
• 11 customizable audio tracks:
(Click, Drum Kit, Percussion, Bass, Electric Guitar, Electric Guitar, Lead Electric Guitar, Electric Piano, Brass section, Backing Vocals, Lead Vocal)

Uncertain Smile made famous by The The
• 10 customizable audio tracks:
(Click, Drum Kit, Percussion, Bass, Acoustic Guitar, Electric Guitar, Piano, String Section, Backing Vocals, Lead Vocal)

Une chance qu'on s'a made famous by Jean-Pierre Ferland
• 5 customizable audio tracks:
(Click, Piano, Backing Vocals, Lead Vocal, Lead Vocal)

Undo It made famous by Carrie Underwood
• 14 customizable audio tracks:
(Click, Drum Kit, Bass, Acoustic Guitar, Electric Guitar, Electric Guitar, Electric Guitar, Mandolin, Electric Piano, Electric Piano, Organ, Violin, Backing Vocals, Lead Vocal)

Unforgettable made famous by The Overtones
• 8 customizable audio tracks:
(Click, Drum Kit, Upright Bass, Piano, Vibes, String Section, Backing Vocals, Lead Vocal)

Under Your Scars made famous by Godsmack
• 9 customizable audio tracks:
(Click, Drum Kit, Bass, Electric Guitar, Lead Electric Guitar, Piano, String Section, Backing Vocals, Lead Vocal)