Note: during the chorus the the root note 'walks' from Em7 to G 
so should go like this (they're marked as [Em7]-[G]):

e | -3--3--3--3--3--3--3
B | -3--3--3--3--3--3--3
G | -0--0--0--0--0--0--0
D | -2--2--2--0--0--0--0
A | -2--2--2--2--2--2--2
E | -0--0--0--2--3--3--3

In the studio version Johnnie Barker just picks the bass note 
then the 1st string repeatedly for each bar (with a couple of 
little slides, but they're easy to work out.) If you just strum 
away to the tune using the below chords it sounds just fine. 
Enjoy and let me know it there's any glaring errors.

 
Intro
=====
[ G ]     [ C9 ]    [ Em7 ]    [ D4 ] [ D ] [ D4 ]  x2


[ G ]       
   Smile, 
[ C9 ]
   walk away
[ Em7 ]
   Go home & cry
[ D4 ]   [ D ]              [ D4 ]
     It's just a bad dream

[ G ]
   You are a little spoon
[ C9 ]
   You are hippy
[ Em7 ]   
   You make me happy
[ D4 ] [ D ]               [ D4 ]
   With flowers in your hair


[ G ]
   So sign the dotted line
[ C9 ]
   Will that be all?
[ Em7 ]
   I'll take fries
[ D4 ]               [ Em7 ]-[ G ]
   That'll be your soul
                     [ Em7 ]-[ G ]
   That would be so good
                  [ Em7 ]-[ G ]
   Will that be all?
                                [ Em7 ]
   That will be your soul


[ G ]
   Are they listening?
[ C9 ]   
   Do they even care?
[ Em7 ]
   Do I give a damn?
[ D4 ] [ D ]             [ D4 ]
   It isn't for them


[ G ]
   You're a little spoon 
[ C9 ]
   And you are hippy
[ Em7 ]
   You make me happy 
[ D4 ] [ D ]         [ D4 ]
   With flowers in your hair



[ G ]
   So sign the dotted line
[ C9 ]
   Will that be all?
[ Em7 ]
   I'll take fries
[ D4 ] [ D ]          [ D4 ]    [ Em7 ]-[ G ]
   And that'll be your soul
                  [ Em7 ]-[ G ]
   That would be so good
                  [ Em7 ]-[ G ]
   Will that be all
                  [ Em7 ] 
   That'll be your soul

-=Guitar Solo - really anything in G with lots of slides sounds fine=-
-=Keep playing G underneath it=- 

                     [ Em7 ]-[ G ] 
   That'll be your soul
                     [ Em7 ]-[ G ]
   That would be so good
                 [ Em7 ]-[ G ] 
   Will that be all?
                     [ C9 ]
   That'll be your soul