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

On écrit sur les murs made famous by Kids United
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

One Day made famous by Akon & Matisyahu
• 2 music tracks in MP3 instrumental version
• 3 music tracks with vocals (covers)

One Day made famous by Matisyahu & Akon
• 2 music tracks in MP3 instrumental version
• 3 music tracks with vocals (covers)

On Top of the World made famous by Imagine Dragons
• 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)

Overdrive made famous by Ofenbach (DJs) & Norma Jean Martine
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

Oh What a Beautiful Morning made famous by Oklahoma! (musical)
• 1 music track in instrumental version
• 1 music track with vocals (cover)

On My Own made famous by Les Misérables (musical)
• 1 music track in instrumental version
• 1 music track with vocals (cover)

Open Arms made famous by Journey
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)