Gamma Ray

Gamma Ray is a power metal band from Hamburg, northern Germany, founded and fronted by Kai Hansen after his departure from the German power metal band Helloween. Hansen is the current lead vocalist, guitarist as well as the chief songwriter of Gamma Ray. The band is known as one of the most prominent bands of the German heavy metal scene.

From Wikipedia

Discografia

Heading for Tomorrow (1990)
Sigh No More (1991)
Insanity and Genius (1993)
Land of the Free (1995)
Somewhere Out in Space (1997)
Power Plant (1999)
No World Order (2001)
Majestic (2005)
Land of the Free II (2007)
To the Metal! (2010)
Empire of the Undead (2014)