Intro

Em G C 
Bm G Em
Em G C
Eb

Then the riff that keeps hitting is...
C , B , G , Eb

Then there is the verse which is more of a riff but the chords are..

Em Am Bm C , B , G , Eb 
Em C Bm C , B , G , Eb
Em C , B , G , Bb

Pre-Chorus (Gee whizz...)
Am Then on the last beat of the bar hit Bb
Am Again, swing onto A Bb
C , C , C , C , C , C , C , C , C , B , G , Eb

Chorus
Em Am Bm C , B , G , Eb
Em Am Bm C , B , G , Eb

And then the only other bit is the middle 8 (after the brass bits) which goes...
C D Am C , B , G , Eb

Then in the final chorus it has the extra wo-oh-oh...

Last Chorus
Em Am Bm C , B , G , Eb
Em Am Bm C , B , G , Eb C C , B , G , Eb Bm C , B , G , Eb

That's pretty much it. The riff in the verse should easily be learnable if you 
mess around on those chords.