- SAY YESCHAGE and ASKAVocalShion
- HINOTORIB'zVocal1collabShion
- SLEEPLESSB'zVocal1collabShion
- The Wild WindB'zVocal2collabShion
- 今夜月の見える丘にB'zVocal1collabShion
- NEO UNIVERSEL'Arc~en~CielVocal1collabShion
- 哀しきdreamerB'zVocal1collabShion
- 瞳の住人L'Arc~en~CielVocal1collabShion
- 恋じゃなくなる日B'zVocalShion
- FOREVER MINEB'zVocalShion