I don't remember the record well but as far as I remember it's originally in Eb, 
but who gives a damn? Everyone will recognize the song anyway whatever way you gonna play it ;)

        A     G         F              E 
Hit the road, Jack and don't you come back 
   A        G        F        E
no more, no more, no more, no more
        A     G         F              E 
Hit the road, Jack and don't you come back 
   A        G        F        E
no more, no more, no more, no more
      
      A           G           F           E
Oohhh woman, woah woman don't treat me so mean
           A           G            F    E
you're the meanest old woman that I ever seen
       A        G        F       E
Well I guess if you said so 
  A               G          F          E
I have to pack my things and go (that's right)

        A     G         F              E 
Hit the road, Jack and don't you come back 
   A        G        F        E
no more, no more, no more, no more
        A     G         F              E 
Hit the road, Jack and don't you come back 
   A        G        F        E
no more, no more, no more, no more
 
    A           G              F             E
Now baby listen baby don't you treat me this a-way
A       G          F         E
I'll be back on my feet some day
      A           G              F     E
Don't care if you do 'cause it's understood
          A      G             F             E
You ain't got no money, you're just ain't no good

       A        G        F       E
Well I guess if you said so 
  A               G          F          E
I have to pack my things and go (that's right)


Hit the road jack.... and so on and so on, you play a/G/F/E all around and then it's just

A G

    F              E       A      G
No, don't you come back no more
F              E       A      G
don't you come back no more


And play it 'til the end of the universe.