Aozora (song)

"Aozora" (青空, "Blue Sky") was the eighth single by the Japanese band The Blue Hearts. The song was recut from the group's third album Train-Train. This song was written in opposition to the continuing apartheid of the time. Mashima said that the actual reading for the title is Aoi Sora. "Heisei no Blues" (平成のブルース), the B-side track, was not on the album Train-Train.

The song was covered by miwa in 2010, for use as the ending theme song of the animated film adaptation of Eto Mori's novel Colorful.