Robazoid posted... That awful Bermuda Triangle: Colorful Pastrale anime used a Pastel Palettes song for their OP, but I don't know if the song was made for them in particular or if Bushiroad just used a song they already had.
(the song in question is the first video in my above post)
Well, the song was featured in an event about a year before the anime aired, so it looks like Bushi just picking a song they already had. But it could have very well been planned to be used for the anime way in advanced (and why not a new song, I have no idea).