I sing the Willie Nelson version......I don't know if others used different lyrics. I haven't gone back to the original for awhile, so hopefully these lyrics and chords are correct.

NIGHT LIFE. (Willie Nelson, Walter Breeland & Paul Buskirk
         
            C               C7
When the evenin' sun goes down,
          F                Ab
You will find me hangin' 'round;
       C          A7          D       G   
Oh, the night life,   ain't a good life,
          C       A7    Dm7    G7
But it's my life.

C                     C7
Many people just like me
         F             Ab
Dreamin' of old used-to-be's;
         C          A             D      G
and the night life,    ain't a good life,   
         C       F Fm C
But it's my life.

Bridge:
C                               C7    (4bar guitar riff)
Listen   to the blues they're playin'
F                Fm          C          G7
Listen to what the blues are sayin'
       C             C7
Mine is just another scene
             F               Ab
From the world of broken dreams
       C          A7          D          G
Oh, the night life,    ain't no good life
          C       F   Fm   C   G7
But it's my life

Instr. (verse)

repeat Bridge.


(last line of bridge).
          C          A            
But it's my life……..
       D                   G
Oh the night life, ain't no good life.
          C
But it's my   ……………life.