U Got It Bad made famous by Usher
• 11 customizable audio tracks:
(Click, Electronic Drum Kit, Tambourine, Sound effects, Synth Bass, Lead Electric Guitar, Guitar Synth, Guitar Synth, Guitar Synth, Backing Vocals, Lead Vocal)

Umbrella (Acoustic) made famous by Rihanna
• 7 customizable audio tracks:
(Click, Drums and Percussion, Upright Bass, Rhythm Acoustic Guitar, Rhythm Acoustic Guitar (Arpeggio), String Section, Lead Vocal)

Unsteady made famous by X Ambassadors
• 9 customizable audio tracks:
(Intro Count (Click + Key), Click, Drum Kit, Noise effects, Bass, Piano, Synthesizer, Backing Vocals, Lead Vocal)

Unchained Melody made famous by Gareth Gates
• 14 customizable audio tracks:
(Intro Count (Click + Key), Click, Drum Kit, Percussion, Timpani + Wind Chimes, Bass, Piano, Synth Pad, Synth Voice, Glockenspiel, String Section, Harp, 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 The Tree made famous by Kelly Clarkson
• 14 customizable audio tracks:
(Click, Drum Kit, Percussion, Bass, Acoustic Guitar, Piano, Organ, Celesta, Bells, Baritone Saxophone, Baritone Saxophone, String Section, Backing Vocals, Lead Vocal)

Un montón de estrellas made famous by Gilberto Santa Rosa
• 15 customizable audio tracks:
(Click, Percussion, Bass, Piano, Electric Piano, Synth Pad, Synth Voice, Synth Lead, Synth Brass, Trumpet, Trumpet, Trumpet, Trombone, Backing Vocals, Lead Vocal)

Unchain My Heart made famous by Ray Charles
• 8 customizable audio tracks:
(Click, Drum Kit, Upright Bass, Piano, Brass section, Tenor Saxophone, Backing Vocals, Lead Vocal)

Unfinished Sympathy made famous by Massive Attack
• 13 customizable audio tracks:
(Click, Drum Kit, Electronic Drum Kit, Shaker, Sound effects, Sound effects, Synth Bass, Piano, Piano, Metal bars, String Section, Lead Vocal, Lead Vocal)

Unchain the Night made famous by Dokken
• 14 customizable audio tracks:
(Click, Drum Kit, Noise effects, Bass, Acoustic Guitar, Distorted Electric Guitar, Distorted Electric Guitar, Distorted Electric Guitar, Arr. Electric Guitar, Lead Electric Guitar, Synthesizer, Synth Pad, Backing Vocals, Lead Vocal)