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Gamma Ray is a German power metal band from Hamburg, founded and fronted by Kai Hansen after his departure from power metal band Helloween, in 1989. He is the band's lead vocalist, guitarist and chief songwriter. Between 1990 and 2014, Gamma Ray recorded eleven studio albums. In 1988, after four years with the German power metal band Helloween, guitarist and songwriter Kai Hansen decided to leave the group. Hansen claimed that Helloween had become too big for him to handle Read more on Last.fm
