Kinya Kotani  

A renowned male singer and actor from Japan has gained fame for his musical contributions to Gravitation, a popular anime series. His voice was used as the singing voice for Shuichi Shindou, the lead singer of Bad Luck in Gravitation. He is often mistakenly identified as the seiyuu behind these songs, but he actually provided vocals for all of Shindous performances, including Rage Beat, Blind Game Again, Smashing Blue, and many others. Another common misconception is that any song not originally intended for Gravitation is considered a Gravitation song. Prior to his solo career, Kinya was part of the band Mad Soldiers, which released a mini-album called Mads Laboratory before he embarked on his solo journey. The members of Mad Soldiers also serve as the backing band for his songs and have performed at his concerts.