This is what I have gathered together from listening to a few FoTC shows. Probably not
but sounds close to me.
Intro
(this is done on a few versions of the song, like the one on the Craig Ferguson show)
(Alternate between the 2 chords)
|--9----8----|
|-10----9----|
|--9----8----|
|-11---10----|
|--9----8----|
|--0----0----|
Verse
(sometimes add the notes after the chords)
(Jemaine plays this part while Bret is rapping, not while he is)
[ Tab from: http://www.guitaretab.com/f/flight-of-the-conchords/87734.html ]
|---------------------------------------------|
|---------------------------------------------|
|---------------------------------------------|
|------------5-------------------2------------|
|--7---------3-3-4-5---3---------2-5-3-2------|
|--5-5-6-7-------------1-1-2-3---0------------|
Verse
(Bret plays this part throughout most of the song)
|-----------------|
|-----------------|
|-----------------|
|--------------2--|
|--7---5---3---2--|
|--5---3---1---0--|
tabbed by Grayson R