This is how I play the song. Suggestions and corrections welcome! 

E A C A B A B  

E 
E      A        C                   A 
Sing along to songs you don't know  
                   B     A       B     E   
And you'll never know until you sing along 

E      A        F                   A 
Sing along to songs you don't know  
                   B     A       B     E   
And you'll never know until you sing along 

E                       A 
You are so beautiful to us 
                            F 
We want to lock you in our house 
    E    Abm  A B  
So beautiful! 

E                      F#m               
You are so beautiful to us 
                            C 
We want to keep you as our pets 
   E     Abm  A B 
So beautiful! 

E                      F#m 
You are so beautiful to us 
                            C 
We want to lock you in our house 
            E                Abm 
We want to eat you with our spoon 
            A        B     E 
We want to make you sing along 

E      A        F                   A 
Sing along to songs you don't know  
                   B     A       B     E   
And you'll never know until you sing along 

E                      F#m 
You are so beautiful to us 
                             C 
We want to lock you in our house 
   E    Abm   A B 
So beautiful! 

E                      F#m 
You are so beautiful to us 
                             C 
We want to keep you as our pets 
   E    Abm   A B 
So beautiful! 

E              
Lala lala lala, lalalala 
A 
Lala lala lala, lalalala 

  F         E    B  E      
Lala lalala, lalala 

E A C A B A B E 

D F#m D F#m 

D              F#m 
Sing along to songs you don't know  
G                  B 
Sing along, sing along  
Em             G         D         B 
You'll never know what could have been  
E             A     D 
If you don't sing along 

D              F#m 
Sing along to songs you don't know  
G                  B 
Sing along, sing along  
Em            G          D          B 
You'll never know what could have been  
E             A     D 
If you don't sing along