Until You Come Back to Me (That's What I'm Gonna Do) made famous by Aretha Franklin
• 15 customizable audio tracks:
(Click, Drum Kit, Tambourine, Shaker, Bass, Electric Guitar, Piano, Electric Piano, Organ, Synth Lead, String Section, Flute, Flute, Backing Vocals, Lead Vocal)

U + Ur Hand made famous by Pink
• 13 customizable audio tracks:
(Click, Drum Kit, Percussion, Bass, Electric Guitar, Rhythm Electric Guitar, Rhythm Electric Guitar, Rhythm Electric Guitar, Arr. Electric Guitar, Synthesizer, Synth Keys, 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)

Uptown Girl made famous by Westlife
• 13 customizable audio tracks:
(Click, Drum Kit, Bass, Acoustic Guitar, Electric Guitar, Piano, Harpsichord, Organ, Synth Strings, Glockenspiel, Brass section, Backing Vocals, Lead Vocal)

Una mañana made famous by José José
• 11 customizable audio tracks:
(Click, Drum Kit, Bass, Acoustic Guitar, Piano, Vibes, Trumpet, Tenor Saxophone, String Section, Violin, 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)

Un' altra te made famous by Eros Ramazzotti
• 15 customizable audio tracks:
(Click, Drum Kit, Electric Bass, Fretless Bass, Rhythm Acoustic Guitar (Arpeggio), Rhythm Acoustic Guitar (Arpeggio), Electric Guitar, Rhythm Electric Guitar (Arpeggio), Lead Electric Guitar, Organ, Synth Pad, Synth Keys, Noise effects, Backing Vocals, Lead Vocal)

Uptown Funk made famous by Jamie Cullum
• 5 customizable audio tracks:
(Click, Drum Kit, Upright Bass, Piano, Lead Vocal)

Under My Thumb made famous by The Rolling Stones
• 9 customizable audio tracks:
(Click, Drums and Percussion, Bass, Synth Bass, Acoustic Guitar, Electric Guitar, Piano, Xylophone, 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)