This song is very simplistic and is pretty much the same riff just with different 
strumming patterns.

TUNING: STANDARD

e|---------------------------------------|
B|---------------------------------------|
G|-6-6-6-6-/-9-9-9-9-\-8-8-8-8-\-4-4-4-4-|
D|-6-6-6-6-/-9-9-9-9-\-8-8-8-8-\-4-4-4-4-|
A|-4-4-4-4-/-7-7-7-7-\-6-6-6-6-\-2-2-2-2-|
E|---------------------------------------|

This is pretty much the main riff through the entire song, in certain parts each note is 
strummed individually rather than as a whole chord (just listen for those parts) But, 
this sounds good through the whole song.