(from the motor city ska album i think) 
 
Intro and Verse: 
Eb  
Bb  
Ab  
Ab   <- not real sure about that, but it works 
 
Repeat that for a while... 
 
Those 2 chords that are switched between just before the chorus are Eb  
and Bb, as played above. 
 
 
Chorus (Power Chords): 
Bb (688XXX) 
Ab (466XXX) 
Eb (X688XX) 
Repeat a few times... 
 
-Play verse  again 
-Play Chorus again 
-Instramental Bridge I , uses verse chords 
-Chorus again 
 
-Bridge II 
Power Chords, not real sure about this, but something like... 
Bb 
Ab 
Db  
Eb