Today the 6th CM for the Aldnoah Zero anime (start airing July 5) is out, and it features a 15 sec sample of Kalafina new song heavenly blue which will be used as Opening Theme. The song will be available either has one of the tracks of Kalafina’s “The Best – Blue” album (released July 16), or as a limited Anime Edition single (released August 6).

thanks to elcazador for the news!!