First of all; play with a pick

The Chorus
G ------------------------------------
D ------------------------------------
A ----------3-3333-3----------5-5555-5
E -5-5555-5----------3-3333-3---------  2x

Then it goes into a slap
G-----------5-----------7
D ----7-----------5------
A ------2/3---------3/5--
E 3/5---------2/3--------   4x

Chorus     4x
Verse      4x
Chorus     4x
and so on

hey have fun with this, its pretty much straight forward.  The timing in the chorus is the main part.  Remember to slap hard and pluck hard to get that funk sound.