Once Upon a December made famous by Anastasia (1997 film) (Liz Callaway)
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

One made famous by Metallica
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

One Broken Heart for Sale made famous by Elvis Presley
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

Over the Rainbow made famous by Sam Harris
• 1 music track in 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)

On My Mama made famous by Victoria Monét
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

On va s'aimer made famous by Gilbert Montagné
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

Only Love Can Hurt Like This made famous by Paloma Faith
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

Outstanding made famous by The Gap Band
• 2 music tracks in MP3 instrumental version
• 1 music track with vocals (cover)

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