Oklahoma Smokeshow made famous by Zach Bryan
• 1 music track in instrumental version
• 1 music track with vocals (cover)

Orange Juice made famous by Noah Kahan
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

Oh, Pretty Woman made famous by Roy Orbison
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

Oh, Pretty Woman made famous by Pretty Woman (film) (Roy Orbison)
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

Obsessed made famous by Olivia Rodrigo
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

One More Time made famous by Blink-182
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

Only You (And You Alone) made famous by The Platters
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

Outskirts made famous by Sam Hunt
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

Old Time Rock and Roll made famous by Bob Seger
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

Opening Medley made famous by The Drifters Girl (musical)
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)