Well I was able to watch the full PV for KG and May’s song きっと、 ずっと which is part of the Ongaku-bito movie. They sound awesome together as a duet.
The movie Ongaku-bito looks like its about a drama between bandmates? Possibly? maybe? Lots of struggling over writng songs, I bet.
Learn more about Ongaku-bito at the official website. Don’t forget to check out the trailer to the movie below and it hits theaters on 5.15.2010.