Trent Reznor song, by the "man in black". Even Reznor acknowledged the pure awesome.
Trent:
"Two weeks went by. Then I got a CD in the post. I listened to it and it was very strange. It was this other person inhabiting my most personal song. I'd known where I was when I wrote it. I know what I was thinking about. I know how I felt. Hearing it was like someone kissing your girlfriend. It felt invasive."