This song is done by Roger (Louis St. Louis) and Jan (Jamie Donnelly) backs up.
The lyrics are based on the movie, not the stage production.

Intro: NC (piano appegio F)
F (133211@1)        Bb (x1333x@1)    GmI (355333@1)spent my da-a-ays 
     Eb (x43121@3)             F (133211@1)             Bb7Bb  GmJust (355333@1)moo-oo-oo-oo-oon-ning so sad and blu-ue 
           EbSo (x43121@3)sad and blu-ue
F (133211@1)        Bb (x1333x@1)      GmI (355333@1)spent my ni-i-ights 
     Eb (x43121@3)             F (133211@1)           Bb7Bb    GmJust (355333@1)moo-oo-oo-oo-oon-ning all over yo- ou
          Eb (x43121@3)   F(All (133211@1)over who-o?)

[Jan harmonizes from the second words of the following, starting from Eb, her
notes move up a tone with every second chord change.]
     Cm7            FWell (133211@1)I'm so full of lo-o-ove 
   Dm (xx0231@1)        Gm (355333@1)     
As any fool ca-an see
       Adim (2312xx@1)       D7'Cause (xx0212@1)an-gels up a-bo-ove 

[Jan stops harmonizing from this line, piano plays the intro on 'moon']
     GmNC (355333@1)      (F)
Have hu-u-ung the moon o-on me
                                         Bb (x1333x@1)                          (Why must you go-o-o)
           Gm (355333@1)                               
Why must I go-o-o
     Eb (x43121@3)             F7Just (131241@1)moo-oo-oo-oo-oon-ning
         Bb7Bb     Gm (355333@1)So all a-lo- one 
          Eb (x43121@3)  
(So all a-lo-one)

F (133211@1)            BbThere (x1333x@1)would be no-o-o 
                Gm(There (355333@1)would be no-o-o)
     Eb (x43121@3)             F7More (131241@1)moo-oo-oo-oo-oon-ning
       Bb7 (x13131@1)   Bb (x1333x@1)   Gm (355333@1)        
If you would ca-all me
           Eb (x43121@3)    F(Up (133211@1)on the pho-one)

[Jan harmonizes from the second words of the following, starting from Eb, her
notes move up a tone with every second chord change.]
      Cm (x3101x@1)       F (133211@1)
While lying by myself in bed 
  Dm (xx0231@1)          GI (320003@1)cry and get myself the red eye
BOTH
Cm7             F7 (131241@1)              Bb7Bb
Moo-oo-oo-oo-oo-oon-ning  o-o-ver yo- ou

[Bass and trumpet play D,Eb,E,F, guitar rings F chord]

[Accordion rings, and piano appegios F7 chord when 'stand' is held]
     NC        
I'll stand 
[Bass, guitar rejoins on [-hi-]
   BbBe-hi-i-ind (x1333x@1)                Gm(You'll (355333@1)stay be-hi-i-ind)
    Eb (x43121@3)             F7You (131241@1)moo-oo-oo-oo-oon-ning 
        Bb (x1333x@1)  GmForever (355333@1)mo-ore 
         Eb (x43121@3)
(Forever mo-ore)
F (133211@1)             Bb (x1333x@1)Some-day you'll fi-i-ind
                Gm(Someday (355333@1)you'll fi-i-ind)
   Eb (x43121@3)             F7 (131241@1)               Bb7 (x13131@1)Bb (x1333x@1)GmMe (355333@1)moo-oo-oo-oo-oon-ning at your front do-o-or
             Eb(At (x43121@3)my front do-o-or)
FWhoa, (133211@1)

[Jan harmonizes from the second words of the following, starting from Eb, her
notes move up a tone with every second chord change.]

Cm (x3101x@1)           F (133211@1)        
Every-y-day at school I watch ya
Dm (xx0231@1)             GAlwa-ays (320003@1)will un-ti-il I got you 
Cm7 (ring)      F7 (ring) 
Moo-oo-oo-oo-oo-oo-oo-oo-oon-ning
Cm  Bb (ring)
Too-oo
There's a moon out tonight