I'm not tabbing the instrumental intro. This tab starts just before the lyrics.

Intro: Em B

Em (022000@1)Now there's a singer everyone has heard
EmAt (022000@1)night he turns into a mocking bird
                                       BIf (x2444x@1)I whistle in the dark he'll do that too.
  EmI (022000@1)met him on the road at the close of day
GTalk (320003@1)like me, walk this way 
         Em (022000@1)              B (x2444x@1)           EmI (022000@1)said "Mocking bird, you ain't no widowmaker".

EmAnd (022000@1)there is a singer everybody knows, 
Emhe (022000@1)makes round with late night show,
                                  BShake (x2444x@1)the hands in the hopes that the masquerade is on,
Em (022000@1)                                      AmYou (x02210@1)turn him off on the radio when he say me and my shadow,
B (x2444x@1)          
Shoot out the lights my shadow's gone.

EmDown (022000@1)at the bottom of the calendar day
Emfind (022000@1)my roots yeah you'll see all eight
Em (022000@1)                                                       Bif (x2444x@1)I'm tied up to the tracks, then he's chained up to the road

(Down at the bottom of the calendar day)
Em (022000@1)                                              AmAnd (x02210@1)it's one for the money, two for the show, for me and my shadow.
B (x2444x@1)                                   EmShoot (022000@1)out the lights and my shadow's gone
B (x2444x@1)                                    EmShoot (022000@1)out the lights and my shadow is gone

Instr: Em x3 B

EmThere (022000@1)is a shadow everyone has heard,
EmAt (022000@1)night he turns into a mocking bird,
                                        BIf (x2444x@1)I whistle in the dark, he'll do that too
Em (022000@1)                            AmI (x02210@1)met him on the road today, a silhouette on a black highway 
        Em (022000@1)               B (x2444x@1)                        EmI (022000@1)said "You can have this world, this world is not my own"
                Em (022000@1)               B (x2444x@1)                        EmThen (022000@1)he said " You can keep this world, this world is not my home".

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My best guess at chords and lyrics.