is the third single by Japanese idol group Idoling. It was released both as a normal edition and limited edition CD + DVD, containing special content and rare footage of the group. Track 3 is only available on the normal edition release. Kokuhaku was used as the theme song of the Microsoft Windows Vista "Vista School" campaign. Its highest charted Oricon position was #9. As of early 2009, it is the highest-selling single by Idoling.
Track listings CD
(Bonus track)
DVD Special contents
External links Pony Canyon - Kokuhaku: Idoling!(Japanese) Pony Canyon - Kokuhaku: Idoling!(Japanese)