What's the mystery song at the very end of the "All Over Me" movie soundtrack?

This was asked over at ask.metafilter.com - http://ask.metafilter.com/68814/What-is-this-mystery-song . I originally didn't read the question very well. It's the song AFTER the silence that comes after the supposed final track by 12 Rounds. Now I am really curious. Here's most of the original query:

"The last song (track 20) is by a band called 12 Rounds called Something Burning. In my iTunes, it lists this song as being 9:46, but this song ends at about 4:19. Then there is dead silence for two minutes, and at 6:18 this unidentified mystery track begins (and on iTunes still reads as being part of track 20).
I know who you are
I know who you are
And I don't want it to show, but I know who you are
etc.
It's a great song, the vocalist sounds a little Billy Corganish to me. But I don't know who does it, and my sad google skilz haven't helped. Please solve the mystery for me!! "