This song center's around the A chord.There is the main riff
then during the part where there is singing kenny is
playing a bunch of downstrokes on A then sliding
down to G. On the G chord he varies the rythum up.

E--------------------------------------------------
B--------------------------------------------------
G--------------------------------------------------
D-----------7----5--------------------------------
A-------------------7----5------------------------
E----------------------------7-----5----5---------
Here are the shapes for the chords