One Day at a Time made famous by Cristy Lane
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

Ocean Pearl made famous by 54-40
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

Out of Oklahoma made famous by Lainey Wilson (Twisters)
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

Out of Oklahoma (Club Tropicana) made famous by Twisters (2024 film)
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

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

Oceans (Where Feet May Fail) made famous by Hillsong United
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

One Love (People Get Ready) made famous by Bob Marley
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

On the Sunny Side of the Street made famous by Diana Krall
• 1 music track in 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)

Ob-La-Di, Ob-La-Da made famous by The Beatles
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)