shichigoro-shingo drew the cover art for the collaboration song “FREE THE MONSTER” by AA=xMasato+Koie (AA=(aaequal)(Wikipedia(En) 
) with Masato (from coldrain) (Wikipedia(En) ) and Koie (from Crossfaith) (Wikipedia(En) )).
It has been distributed on iTunes, Amazon and so on.
Official Website of AA= (aaequal)
www.aaequal.com
Official Website of coldrain
www.coldrain-worldwide.com
Official Website of Crossfaith
crossfaith.jp