These chords sounds close as well as the pick pattern.
If you have suggestions for a better picking pattern 
or chords please comment. I'm not 100% on this one

Picking part
 Strum Asus4 down twice then
e--0---------0----------0------------
D---2---------2----------2----------
G------------------------------------
D---------2---------2---------------
A--------2---------3-----------------
E------------------------------------
 Palm muted Em7 then back to intro chords 

Intro: G Em7 Cadd9 G x2

 G
Come on in have a seat 

Take a load off, tap your feet 
  Em7    Cadd9  G
To the rhythm, for a while 
 G
Have a beer, have a smoke 

Do whatever you do to let go 
  Em7      Cadd9  G
From the rhythm, for a while 
 
D              Em7      Cadd9
Feeling good, feeling fine 
                      G
On a Saturday night, for a while 

G
It's been a long week, worked hard 

Up in the morning, till dark
 Em7     Caddd9  G
To the rhythm, for a while 
G
So crank the music up real loud 

Everybody wants to hear the sound
  Em7     Cadd9  G
Of the rhythm, for a while 

D              Em7      Cadd9
Feeling good, feeling fine 
                      G
On a Saturday night, for a while 

Em7                Asus4
Let your problems drift away 
 C                 G 
Wash your worries down the drain 
 Am                  C
Send your troubles down that old dirt road 
 Asus4 Pick--------------------------
Yeah tonight just let go, yeah let go 

D              Em7      Cadd9
Feeling good, feeling fine 
                      G
On a Saturday night, for a while 

D              Em7      Cadd9
Feeling good, feeling fine 
                      G
On a Saturday night, for a while