Probably one of the easiest songs i know.
but it's still fun.

e-----------|
b-----------|
g-4-4-4-7-5-|
d-4-4-4-7-5-|
a-2-2-2-5-3-|
e-----------|

For the chorus just strum more, it follows the same timing.
They use some sort of wah/drone effect but i dont know what kind.
If you want to talk music add me on msn at poop_sickle@msn.com