I worked out the bass for the intro and break but not for the whole song so if any one 
any additions to this tab please feel free to do so or use this tab to extend your own version.

Intro/Break Bass
G:-------------------------------------------------|
D:--------------------------------4----------------|
A:----------2----4--2------4-2-4-------------------|
E:---0-2-4------------2------------------2-2-4-4-7-|

verse chords
E  C#m  F#m  B
7---4---2---7-|
9---5---2---7-|
9---6---2---8-|  Just repeat this pattern as necessary until chorus.
9---6---4---9-|  The strumming pattern is easy to figure out.
7---4---4---9-|
x---x---2---7-|

Chorus Chords
F#m  B   A
2----7---5-|
2----7---5-|
2----8---6-|
4----9---7-|
4----9---7-|
2----7---5-|

I have listed the lyrics below just in case there is any confusion on how the chorus is played:

                  F#m F#m (down strokes)
oh the boys a slag
                  B   B   (down strokes)
the best you ever had
                  F#m F#m (down strokes)
the best you ever had
     F#m F#m   B B   B B