Under the Bridge made famous by Red Hot Chili Peppers
• 11 customizable audio tracks:
(Click, Drum Kit, Percussion, Bass, Rhythm Electric Guitar, Rhythm Electric Guitar, Arr. Electric Guitar, Piano, Organ, Backing Vocals, Lead Vocal)

Use Somebody made famous by Kings of Leon
• 10 customizable audio tracks:
(Click, Drum Kit, Bass, Electric Guitar, Electric Guitar, Lead Electric Guitar, Organ, Synth Pad, Backing Vocals, Lead Vocal)

Unstoppable made famous by Sia
• 12 customizable audio tracks:
(Click, Electronic Drum Kit, Percussion, Noise effects, Synth Bass, Piano, Synthesizer, Synth Strings, Arpeggiator, Synth Brass, Backing Vocals, Lead Vocal)

Unchain My Heart made famous by Joe Cocker
• 11 customizable audio tracks:
(Click, Drum Kit, Bass, Electric Guitar, Electric Guitar, Lead Electric Guitar, Piano, Brass section, Tenor Saxophone, Backing Vocals, Lead Vocal)

Use Me made famous by Bill Withers
• 7 customizable audio tracks:
(Click, Drum Kit, Percussion, Bass, Acoustic Guitar, Synth Keys, Lead Vocal)

Uprising made famous by Muse
• 10 customizable audio tracks:
(Click, Acoustic Drum Kit, Hand Clap, Bass, Electric Guitar, Synth Lead, Arpeggiator, String Section, Backing Vocals, Lead Vocal)

Used to Be Young made famous by Miley Cyrus
• 15 customizable audio tracks:
(Click, Drum Kit, Percussion, Noise effects, Bass, Acoustic Guitar, Acoustic Guitar, Electric Guitar, Electric Guitar, Piano, Synth Pad, Synth Strings, Arpeggiator, Backing Vocals, Lead Vocal)

Umbrella made famous by Rihanna & Jay-Z
• 15 customizable audio tracks:
(Click, Hi-Hat, Electronic Drum Kit, Electronic Bass Drum, Electronic Bass Drum, Clap, Synth Bass, Piano, Piano, Synth Lead, Synth Lead, Backing Vocals, Lead Vocal, Lead Vocal, Lead Vocal)

Unforgettable made famous by Nat King Cole
• 11 customizable audio tracks:
(Click, Drum Kit, Upright Bass, Acoustic Guitar, Piano, Vibes, Brass section, Tenor Saxophone, String Section, Harp, Lead Vocal)

Unforgettable (duet) made famous by Nat King Cole & Natalie Cole
• 12 customizable audio tracks:
(Click, Drum Kit, Upright Bass, Acoustic Guitar, Piano, Vibes, String Section, Harp, Brass Instruments, Tenor Saxophone, Lead Vocal, Lead Vocal)