- Central
- Chances
- Charlie by Red Hot Chili Peppers prod. by Rick Rubin
- Christchurch Fireworks Music by Red Hot Chili Peppers prod. by Rick Rubin
- Cicatriz ESP by The Mars Volta prod. by Omar Rodríguez-López & Rick Rubin
- Cinch
- Clank
- Clinch
- C'mon Girl by Red Hot Chili Peppers prod. by Rick Rubin
- coke by Lil Peep & Yunggoth✰ prod. by SLIGHT
- Coltrane (The Zephyr Song) [Demo] by Red Hot Chili Peppers prod. by Rick Rubin
- Communique by John Frusciante and Josh Klinghoffer prod. by Josh Klinghoffer
- Communique prod. by Josh Klinghoffer
- Conjugal Burns by The Mars Volta prod. by Omar Rodríguez-López
- Control
- Copernicus by The Mars Volta prod. by Omar Rodríguez-López
- Copperbelly by Red Hot Chili Peppers prod. by Rick Rubin
- Cotopaxi by The Mars Volta prod. by Omar Rodríguez-López
- Crosstown Traffic (Live) by Red Hot Chili Peppers prod. by Michael Beinhorn
- Crowded