Under African Skies made famous by Paul Simon
• 10 customizable audio tracks:
(Click, Drum Kit, Percussion, Bass, Acoustic Guitar, Electric Guitar, Arr. Electric Guitar, Male Backing Vocals, Backing Vocals, Lead Vocal)

Under Your Spell Again made famous by Buck Owens
• 10 customizable audio tracks:
(Click, Drum Kit, Upright Bass, Acoustic Guitar, Rhythm Electric Guitar, Pedal Steel Guitar, Piano, Fiddle, Backing Vocals, Lead Vocal)

Unforgettable (Eurovision Sweden) made famous by Marcus & Martinus
• 15 customizable audio tracks:
(Click, Drum Kit, Noise effects, Synth Bass, Synth Bass, Organ, Synthesizer, Synthesizer, Synth Pad, Synth Lead, Synth Keys, Guitar Synth, Backing Vocals, Lead Vocal, Lead Vocal)

Unforgettable made famous by Sia (Finding Dory)
• 13 customizable audio tracks:
(Click, Drum Kit, Triangle, Timpani, Upright Bass, Celesta, French Horn, String Section, Harp, Oboe, Clarinet, Flute, Lead Vocal)

Unforgettable made famous by Finding Dory (Sia)
• 13 customizable audio tracks:
(Click, Drum Kit, Triangle, Timpani, Upright Bass, Celesta, French Horn, String Section, Harp, Oboe, Clarinet, Flute, Lead Vocal)

Unchained Melody made famous by The Shadows & Cliff Richard
• 6 customizable audio tracks:
(Click, Drum Kit, Upright Bass, Acoustic Guitar, Electric Guitar, Lead Vocal)

Unchained Melody made famous by Cliff Richard & The Shadows
• 6 customizable audio tracks:
(Click, Drum Kit, Upright Bass, Acoustic Guitar, Electric Guitar, Lead Vocal)

Uptown Funk made famous by Pomplamoose
• 14 customizable audio tracks:
(Click, Drum Kit, Percussion, Noise effects, Bass, Electric Guitar, Piano, Organ, Synth Voice, Synth Lead, Synth Keys, Backing Vocals, Lead Vocal, Lead Vocal)

Uncharted made famous by Sara Bareilles
• 12 customizable audio tracks:
(Click, Drum Kit, Tambourine, Bass, Electric Guitar, Electric Guitar, Lead Electric Guitar, Piano, Organ, String Section, Backing Vocals, Lead Vocal)

Up All Night made famous by One Direction
• 14 customizable audio tracks:
(Click, Electronic Drum Kit, Electronic Percussion, Synth Bass, Electric Guitar, Piano, Synthesizer, Synthesizer, Synthesizer, Synth Pad, Synth Keys, Synth Keys, Backing Vocals, Lead Vocal)