Intro and verse:
(Listen to the song so you know when, and how many times it is played.
   E
|-------------------------------------------------------------|
|-------------------------------------------------------------|
|-----------------------------0-------------------------------|
|--2------2------2-----2------0-------------------------------|
|--2------2------2-----2--------------------------------------|
|--0-x-x--0-x-x--0-x-x-0--------------------------------------|

   E                 A                          A#
|-------------------------------------------------------------|
|-------------------------------------------------------------|
|--------------------2-2-2-2-2-2-2-2-2-2-2-2----3---3---------|
|--2-2-2-2-2-2-2-2---2-2-2-2-2-2-2-2-2-2-2-2----3---3---------|
|--2-2-2-2-2-2-2-2---0-0-0-0-0-0-0-0-0-0-0-0----1-x-1-x-------|
|--0-0-0-0-0-0-0-0--------------------------------------------|



Epic guitar riff/bridge:
    A        B        C        D         A   A             B        C        D         A   A
E|---------------------------------------------------------------------------------------------|
B|---------------------------------------------------------------------------------------------|
G|--2--------4--------5--------7---------14--14\-----------4--------5--------7---------14--14\-|
D|--2--------4--------5--------7---------14--14\-----------4--------5--------7---------14--14\-|
A|--00000000-22222222-33333333-55555555--12--12\--00000000-22222222-33333333-55555555--12--12\-|
E|---------------------------------------------------------------------------------------------|

    A        B        C        D                     
E|----------------------------------------------------|
B|----------------------------------------------------|
G|--2--------4--------5--------7----------------------|
D|--2--------4--------5--------7----------------------|
A|--00000000-22222222-33333333-55555555---------------|
E|---------------------------------------(Pick slide)-|

   A  F C G D   A  F C G D   A  F C G D   A  F C G  F# G  G# A
E|----1-0-3-2------1-0-3-2------1-0-3-2------1-0-3--------------|
B|----1-1-3-3------1-1-3-3------1-1-3-3------1-1-3--------------|
G|-2--2-0-0-2---2--2-0-0-2---2--2-0-0-2---2--2-0-0--11-12-13-14-|
D|-2--3-2-0-0---2--3-2-0-0---2--3-2-0-0---2--3-2-0--11-12-13-14-|
A|-0--3-3-x-----0--3-3-x-----0--3-3-x-----0--3-3-x--9--10-11-12-|
E|--------3------------3------------3------------3--------------|



Chorus:
   G  D  A               G  D  A               A#  F  C
E|-33-22---------------33-22-------------------1----|
B|-33-33---------------33-33-------------------1----|
G|-00-22-2-2-----2-----00-22-2-2-----2-----33-x2-x5-|
D|-00-00-2-2----2------00-00-2-2----2------33-x3-x5-|
A|-xx----0-0-3h4-------xx----0-0-3h4-------11-x3-x3-|
E|-33------------------33---------------------------|



Breakdown:
(Play these chords and the open A-string continuously... just listen to the song) 
    A      F      G      D
E|---------1------3------2----|
B|--2------1------3------3----|
G|--2------2------0------2----|
D|--2------3------0------0----|
A|--0-------------------------|
E|----------------------------| 

The last time it is played they end on these chords instead of the D
          A5
E|--6--------|
B|--3-x?-----|
G|--3-----2--|
D|--------2--|
A|--------0--|
E|-----------| 



I don´t have the energy to tab out the rest of the chords but I think you will be fine
Pick some notes from the chords below

 A - E - G - A A4

A                 E
 But what if it's true?
       G                               A
 If Tenacious D has died, what will we do?
A                  E
 And what will we do,
        G                               A
 About all the fans who have The D tattoo?
A                      E
 They'll have them removed,
         G                              A
 They'll have to laser off their D tattoos
A        E
 Tattoos..
         G                              A
 They'll have to laser off their D tattoos

   Solo: A-E-G-A
         A-E-G-A

The slides and the hammer-on at the end are optional incase you don't want or can't play it.
E|--5/9-9-9-9-7--7---------7-------7--9--7-------7--|
B|-------------10--10-8--/8--8-8-/8--------10--10-10|
G|--------------------------------------------------|
D|--------------------------------------------------|
A|--------------------------------------------------|
E|--------------------------------------------------|



E|----9----12--10--9--10--9--7----/10--9--7----------|
B|-/10--/10--------------------10------------8--8h10-|
G|---------------------------------------------------|
D|---------------------------------------------------|
A|---------------------------------------------------|
E|---------------------------------------------------|


    A
[JB:] Wait a minute Kage.
    G
[KG:] What's that you say?
    D
[JB:] You know it's not too late.
    A
[KG:] Yes, it is too late.
    A
[JB:] We only need one hit.
    G
[KG:] Just imagine it.
    D
[JB:] We could be the shit!
    A
[Both:] Too legit to quit!

      A        G        D
 One hit! One hit! One hit!
      A
 Yea, were hoping this is it
      A          G           D
 One hit! Top 10 hit! Top 40 hit!
      A
 Top 1,000 hit!

           A
 I don't care,
                G
 As long as we get there!
                D
 We'll start a new,
              A                     A-G-D-A 
- A
 And you can get a new Tenacious D tattoo!
G         D
 You can get a new Tenacious D ta...
 F      G     A
 toooo..tooo..yooo