CB Mass was a Korean hip hop group formed in 1998 by Curbin, Choiza and Gaeko. The group was disbanded in 2003.
| Game | Song | Year | Album |
|---|---|---|---|
| Pump It Up Rebirth | A Whistle | 2002 | Massmatics |
| Pump It Up Rebirth | Gentleman Quality (For the Club) | 2002 | Massmatics |
| Pump It Up The Premiere 2 | A Whistle | 2002 | Massmatics |
| Pump It Up The Premiere 2 | Gentleman Quality (For the Club) | 2002 | Massmatics |
| Pump It Up The Prex 2 | A Whistle | 2002 | Massmatics |
| Pump It Up The Prex 2 | Gentleman Quality (For the Club) | 2002 | Massmatics |