Intro: (when the horns (or something like that) enter)
G|---------------
D|---2-----2-4---
A|-4-----------4-
E|---------------

Main Riff: (play for most of the song)
     1       2       3       4   
G|-------------------------------
D|------------2---4--------------
A|--4-2---4-----------4-------r--
E|-------------------------------

End-Of-Chorus: (just a few staccato (mighty short) notes)
G|-------------
D|-------------
A|----------2--  then back to the main riff.
E|-5----2------

Ending: (scary talking part)
G|-------
D|-------
A|-4-44-- many times
E|-------