| Format | Title | Artist | Label | Model Number | Release | Press |
| 7 | SECRET | SIERRA | REVOLUTION RECORDINGS,RIVER CITY MUSIC ENTERTAINMENT | RRCRI-060223 | 2006/--/-- | - |
| Side | Track | Title | Artist | Produce |
| A | 1 | SECRET | SIERRA | DJ ICHIKAWA |
| B | 2 | PARTY☆RHYME feat.SIERRA | MIC BANK | DJ ICHIKAWA |
