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

G5 X 2

Chorus
C5                       G5
Meet me down in Chi-Town,
C5
in Logan Square underground
F5
You know the one,
C5                  G5
we were always there.
C5                      G5
Meet me down in Chi-Town,
C5
in Logan Square underground
F5
You know the one,
C5                  G5
we were always there.

Verse 1
C5          A5     E5
Forget the airport
      G5
and cut my hair short
C5           A5      E5
Eat cookies and cream
      G5                           C5
from the store at the end of the street,
             A5
There's so much junk in my head,
E5              G5
will I only  hear when you're dead?
C5               A5              E5               G5
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

G5

G5 Ab5 G5 Ab5

Chorus
C5                       G5
Meet me down in Chi-Town,
C5
in Logan Square underground
F5
You know the one,
C5                  G5
we were always there.
C5                      G5
Meet me down in Chi-Town,
C5
in Logan Square underground
F5
You know the one,
C5                  G5
we were always there.

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

Pre-Chorus

G5

G5 Ab5 G5 Ab5

Solo (Same as chorus)
C5 G5 C5 F5 C5 G5
C5 G5 C5 F5 C5 G5


Chorus
C5                       G5
Meet me down in Chi-Town,
C5
in Logan Square underground
F5
You know the one,
C5                  G5
we were always there.
C5                      G5
Meet me down in Chi-Town,
C5
in Logan Square underground
F5
You know the one,
C5                  G5
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.