Helloween

Helloween is a German power metal band founded in 1984 in Hamburg, Northern Germany by members of bands Iron Fist and Gentry.Its first lineup consisted of singer and rhythm guitarist Kai Hansen, bassist Markus Grosskopf, lead guitarist Michael Weikath, and drummer Ingo Schwichtenberg.

Since its inception, Helloween has released fifteen studio albums, three live albums, three EPs, and twenty-seven singles, and has sold more than eight million records worldwide. (From Wikipedia)