Tuning: standard  (e,a,d,g,b,e)
Heavy dist. for the entire song

Chords: CM7=x GM7=x G5=x E5=x C6=x
            0     x    x    x    x
            4     0    x    x    2
            5     4    5    2    5
            3     5    5    2    3
            x     3    3    0    x

Intro:

CM7  =>  GM7   x6


Verse:

G5    E5               CM7  C6    CM7  C6                  G5    
happy days are here again                       and you're not 

G5             E5                  CM7       C6    CM7   C6
cause when she smiles it shakes my sickest phase

G5          E5          CM7   C6      CM7  C6
and again,  and again,  and again

G5             E5                  CM7      C6    CM7
cause when she smiles it shakes my sickest face


Outro:

CM7 =>  GM7    x7

final riff
 |---------------|
t|---------------|
 |---------------|
a|-2-2--4-4------|
 |-3-3--5-5--2-2-|
b|-----------3-3-|

来源：www.ultimate-guitar.com