Helloween are a German power/speed metal band founded in the mid 1980s by members of Iron Fist and Powerfool. The band is known as one of the pioneering power metal bands, allmusic ((( Helloween > Overview ))) being part of the German heavy/speed/power metal scene that included Accept, Running Wild, Blind Guardian, Grave Digger, Sinner, and Rage. History Walls of Jericho Helloween for