This is my first tab but i believe its pretty spot on. if you just listen to the song 
and individual parts it makes things a lot easier.

/ = slide up
v = vibrato


"bass" part           (VERSE)                                        (CHORUS)
e -------------------------|                e------------------------------|
B -------------------------|                B------------------------------|
G -------------------------|                G------------------------------|
D -------------------------|                D------------------------------|
A ---5--5--3--3--5--5------|                A ---5--5--3--3--1--1--3--3----|
E--------------------------|                E -----------------------------|
 *FOR THIS PART I DO BELIEVE THAT THE LOW E STRING IS TUNED TO AN A. IF YOU WATCH THE 
VIDEO IT LOOKS AS IF HE IS PLAYING ON THE E STRING BUT THIS IS SIMPLY DONE IN STANDARD TUNING.


Guy in the middle        (INTRO)
e ---------3--3--5--6--8--5--3--1--1--0--0-----------|
B---1--1------------------------------------3--3--1--|
G----------------------------------------------------|
D----------------------------------------------------|
A----------------------------------------------------|
E ---------------------------------------------------|


e --------3--3--5--6--8--5--3---------0--------3/5-------|
B --1--1-------------------------3--3-----3--3-----------|
G--------------------------------------------------------|
D--------------------------------------------------------|
A--------------------------------------------------------|
E -------------------------------------------------------|

                (VERSE 1)

e--------------------------------------------------|
B------3--3-----3--3-----3--3------3--3---3--3-----|
G--------------------------------------------------|
D--------------------------------------------------|
A--------------------------------------------------|
E -------------------------------------------------|

       (INTERLUDE)

e----5v--8--5-3--5----------0---5v--8--5-3--5---------|
B--3-----------------3--3-----3-----------------3-3---|
G ----------------------------------------------------|
D ----------------------------------------------------|
A- ---------------------------------------------------|
E-- --------------------------------------------------|

       (VERSE 2)

e --------------------------|
B-----3--3----3--3----3--3--|
G---------------------------|
D---------------------------|
A---------------------------|
E --------------------------|

            (CHORUS)

e---5---3--3--5----5---3--3--5----------5---3--3--5----5---3--3--5-------------|
B----------------6--------------6--5--3--------------6--------------6--5--3----|
G -----------------------------------------------------------------------------|
D -----------------------------------------------------------------------------|
A -----------------------------------------------------------------------------|
E -----------------------------------------------------------------------------|


e---------3--3--5--6--8--5--3--1--1--0--0------------|
B---1--1------------------------------------3--3--1--|
G----------------------------------------------------|
D----------------------------------------------------|
A----------------------------------------------------|
E----------------------------------------------------|


e --------3--3--5--6--8--5--3---------0--------3/5-------|
B --1--1-------------------------3--3-----3--3-----------|
G--------------------------------------------------------|
D--------------------------------------------------------|
A--------------------------------------------------------|
E -------------------------------------------------------|

      (BREAK)

e------------------------|
B----6--6--3--3--3--3----|
G------------------------|
D------------------------|       X6
A------------------------|
E------------------------|

         (VERSE 3)

e -----------5--5--5-------------5--5--5-------------5--5--5------------5--5--5---|
B---6--6--5--5--5--5----6--6--5--5--5--5----6--6--5--5--5--5---6--6--5--5--5--5---|
G---------------------------------------------------------------------------------|
D---------------------------------------------------------------------------------|
A---------------------------------------------------------------------------------|
E --------------------------------------------------------------------------------|


e---5--3----8--5--3----5--3----8--5--3---|
B--------------------5-------------------|
G----------------------------------------|
D----------------------------------------|
A----------------------------------------|
E----------------------------------------|

             (CHORUS)

e---5---3--3--5----5---3--3--5----------5---3--3--5----5---3--3--5-------------|
B----------------6--------------6--5--3--------------6--------------6--5--3----|
G -----------------------------------------------------------------------------|
D -----------------------------------------------------------------------------|
A -----------------------------------------------------------------------------|
E -----------------------------------------------------------------------------|


e ---------3--3--5--6--8--5--3--1--1--0--0-----------|
B---1--1------------------------------------3--3--1--|
G----------------------------------------------------|
D----------------------------------------------------|
A----------------------------------------------------|
E ---------------------------------------------------|


e --------3--3--5--6--8--5--3---------0------------------|
B --1--1-------------------------3--3-----3--3--1--------|
G--------------------------------------------------------|
D--------------------------------------------------------|
A--------------------------------------------------------|
E -------------------------------------------------------|

     (ENDING)

e ---------3--3--5--6--8--5--3--1--1--0--0-----------|
B---1--1------------------------------------3--3--1--|
G----------------------------------------------------|
D----------------------------------------------------|
A----------------------------------------------------|
E ---------------------------------------------------|


e --------3--3--5--6--8--5--3---------0--------3/5-------|
B --1--1-------------------------3--3-----3--3-----------|
G--------------------------------------------------------|
D--------------------------------------------------------|
A--------------------------------------------------------|
E -------------------------------------------------------|


Girl    (INTRO & VERSES)
e----------------------|
B ----15--13--15--13---|
G----14--12--14--12----|
D----12--10--12--10----|
A----------------------|
E----------------------|

    (CHORUS & ENDING)

e --------------------------------|
B ----15--13--11--13--15--13--11--|
G ----14--12--10--12--14--12--10--|
D ----12--10--8---10--12--10--8---|
A --------------------------------|
E---------------------------------|