The G bits in the verse are just two very quick hits of the G chord. Pretty simple really-
I prefer to play them as power chords, G5, C5, A5 etc, but you may prefer barred or open.


Intro

Feedback, followed by

G X 2

Chorus
C                       G
Meet me down in Chi-Town,
C
in Logan Square underground
F
You know the one,
C                  G
we were always there.
C                      G
Meet me down in Chi-Town,
C
in Logan Square underground
F
You know the one,
C                  G
we were always there.

Verse 1
C          Am     E
Forget the airport
      G
and cut my hair short
C           Am      E
Eat cookies and cream
      G                           C
from the store at the end of the street,
             Am
There's so much junk in my head,
E              G
will I only  hear when you're dead?
C               Am              E               G
But I'll still think of you to take it out on myself.

Pre-Chorus
It kind of stays on G, sliding up one fret, a few times, then alternates and gets quicker

G/Ab

G Ab G Ab

Chorus
C                       G
Meet me down in Chi-Town,
C
in Logan Square underground
F
You know the one,
C                  G
we were always there.
C                      G
Meet me down in Chi-Town,
C
in Logan Square underground
F
You know the one,
C                  G
we were always there.

Verse 2
(Same chords as the first!)
At the end of the rainbow...

Pre-Chorus

G/Ab

G Ab G Ab

Solo (Same as chorus)
C G C F C G
C G C F C G


Chorus
C                       G
Meet me down in Chi-Town,
C
in Logan Square underground
F
You know the one,
C                  G
we were always there.
C                      G
Meet me down in Chi-Town,
C
in Logan Square underground
F
You know the one,
C                  G
we were always there.

A few notes are played to finish (on the D string, 10th fret) C, B, Bb, and then 
feedback to end with.