(Includes metal, hard rock, and miscellaneous hard/heavy music.)

I'd have to easily say Rammstein...

Let me count the way...

Seeman

Engel

Stripped (Depeche Mode cover...But still...)

Nebel

Ohne Dich

The only band that I find comes close is Metallica. (Well, Manowar's okay, but their ballads have way too much fromage...)
Amour