United made famous by Judas Priest
• 8 customizable audio tracks:
(Click, Drum Kit, Percussion, Bass, Electric Guitar, Electric Guitar, Backing Vocals, Lead Vocal)

Until It's Time for You to Go made famous by Elvis Presley
• 9 customizable audio tracks:
(Click, Drum Kit, Bass, Acoustic Guitar, Electric Guitar, Piano, String Section, Backing Vocals, Lead Vocal)

Under the Graveyard made famous by Ozzy Osbourne
• 15 customizable audio tracks:
(Click, Drum Kit, Percussion, Electric Bass, Synth Bass, Acoustic Guitar, Arr. Acoustic Guitar, Rhythm Electric Guitar (Arpeggio), Arr. Electric Guitar, Distorted Electric Guitar, Lead Electric Guitar, Synth Strings + Synth Voice, Synth Keys, Backing Vocals, Lead Vocal)

Unconditional (acoustic) made famous by Sinéad Harnett
• 3 customizable audio tracks:
(Click, Piano, Lead Vocal)

Un ragazzo una ragazza made famous by The Kolors
• 15 customizable audio tracks:
(Click, Electronic Drum Kit, Percussion, Noise effects, Bass, Synth Bass, Electric Guitar, Piano, Synth Pad, Synth Keys, Synth Keys, Arpeggiator + Synth Brass, String Section, Backing Vocals, Lead Vocal)

Unchained Melody made famous by Matt Monro
• 11 customizable audio tracks:
(Click, Snare Drum, Upright Bass, Acoustic Guitar, Piano, Celesta, String Section, Harp, French Horn, Flute, Lead Vocal)

Unforgettable made famous by Michael Bublé
• 8 customizable audio tracks:
(Click, Drum Kit, Upright Bass, Electric Guitar, Piano, String Section, Cello, Lead Vocal)

Über den Wolken made famous by Dieter Thomas Kuhn
• 8 customizable audio tracks:
(Click, Drum Kit, Percussion, Bass, Acoustic Guitar, Sound effects, Backing Vocals, Lead Vocal)

Unstoppable made famous by The Score
• 13 customizable audio tracks:
(Click, Drum Kit, Noise effects, Electric Bass, Synth Bass, Distorted Electric Guitar, Distorted Electric Guitar, Arr. Electric Guitar, Piano, Organ, Synth Pad, Backing Vocals, Lead Vocal)

Untitled (How Does It Feel) made famous by D'Angelo
• 12 customizable audio tracks:
(Click, Electronic Drum Kit, Bass, Electric Guitar, Electric Guitar, Lead Electric Guitar, Piano, Electric Piano, Organ, Backing Vocals, Lead Vocal, Lead Vocal)