One Margarita made famous by Luke Bryan
• 14 customizable audio tracks:
(Click, Drum Kit, Sound effects, Percussion, Bass, Acoustic Guitar, Electric Guitar, Electric Guitar, Electric Guitar, Electric Guitar, Electric Guitar, Organ, Backing Vocals, Lead Vocal)

On My Own made famous by Les Misérables (musical)
• 13 customizable audio tracks:
(Click, Drum Kit, Wind Chimes, Timpani, Upright Bass, Acoustic Guitar, String Section, Harp, French Horn, English Horn, Clarinet, Flute, Lead Vocal)

Oh, Boy! made famous by Buddy Holly
• 8 customizable audio tracks:
(Intro Count (Click + Key), Click, Drum Kit, Bass, Electric Guitar, Electric Guitar, Backing Vocals, Lead Vocal)

Okie From Muskogee made famous by Merle Haggard
• 9 customizable audio tracks:
(Click, Drum Kit, Bass, Acoustic Guitar, Electric Guitar, Lead Electric Guitar, Piano, Backing Vocals, Lead Vocal)

One Way Ticket made famous by Eruption
• 14 customizable audio tracks:
(Click, Drum Kit, Percussion, Bass, Electric Guitar, Electric Guitar, Electric Guitar, Electric Piano, Organ, Accordion, Synth Pad, Synth Lead, Backing Vocals, Lead Vocal)

Oye made famous by La Sonora Dinamita
• 11 customizable audio tracks:
(Click, Percussion, Bass, Electric Guitar, Piano, Synthesizer, Trumpet, Trumpet, Trombone, Backing Vocals, Lead Vocal)

Operator (That's Not The Way It Feels) made famous by Jim Croce
• 8 customizable audio tracks:
(Click, Drum Kit, Bass, Acoustic Guitar, Acoustic Guitar, Piano, Backing Vocals, Lead Vocal)

Ooh Baby Baby made famous by Smokey Robinson
• 11 customizable audio tracks:
(Click, Drum Kit, Bass, Rhythm Electric Guitar, Electric Guitar, Piano, Electric Piano, Brass section, String Section, Backing Vocals, Lead Vocal)

One made famous by Metallica
• 12 customizable audio tracks:
(Click, Drum Kit, Noise effects, Bass, Acoustic Guitar, Electric Guitar, Electric Guitar, Distorted Electric Guitar, Lead Electric Guitar, Lead Electric Guitar, Backing Vocals, Lead Vocal)

Oh What a Beautiful Morning made famous by Oklahoma! (musical)
• 12 customizable audio tracks:
(Click, Acoustic Guitar, Glockenspiel, String Section, Double Bass, Harp, Brass Instruments, French Horn, Oboe, Clarinet, Flute, Lead Vocal)