Back Then

For the intro, chorus and they just play power chords.
Each is strummed four times.
C---G---A---F 

At the very end the last chord is E
Verse.
G---A---G---A---G---A- G F 

Bridge. (no power chords)
G G D7 G C D7 G-

The end picking 4x             after 4x
e|--------------------------|------------------------------------------------| 
B|--101-101-101-303130------|--578-873---------------------------------------| 
G|-2---0--------------------|----------8-------------------------------------| 
D|---------2----------------|------------------------------------------------| 
A|--------------------------|------------------------------------------------| 
E|--------------------------|------------------------------------------------|