“Gothkiller” is in English. That is unusual, because Eisbrecher (Icebreaker) is a German hard rock band, that usually sings in German. (I know how much most Americans hate foreign languages.) They are part of a musical genre in Germany called Neue Deutsche Härte (New German Hardness).
This is “Gothkiller” from their 2010 album Eiszeit. (Ice Age, in English) It features vocals by Rob Vitacca, a singer in a German Gothic Metal band, Lacrimas Profundere. (Lyrics are at this link. It may be in English, but it is still Metal.)