- Christmas Pussy by Gabi Bucé prod. by Gabi Bucé
- Chrysalis
- Class Fight prod. by Michael Keenan
- Class Fight (Clean) prod. by Michael Keenan
- Class Fight (Movie Version) prod. by Michael Keenan
- Coloring Book prod. by One Love
- Coloring Book (Traduzione Italiana)
- Colouring Book-Melanie Martinez- Unreleased [Crybaby album] prod. by One Love
- Cooties (2014) prod. by Felix Snow
- Cooties- Melanie Martinez- Unreleased [Crybaby album]
- Cooties (Traduzione Italiana)
- Copy Cat (Ft. Tierra Whack) prod. by Michael Keenan
- Corpse (Concept Demo) prod. by One Love
- Corpse (Demo) prod. by One Love
- Corpse (Rework)
- Corpse (Traduzione Italiana)
- Cough Syrup (The Voice Performance) prod. by Bill Appleberry
- Crazy (The Voice Performance) prod. by Bill Appleberry
- Creep
- Cry Baby prod. by One Love