Really easy tune.  Basically the same two chords repeat throughout.  

Intro/Main riff: G5 C5 

And here's the melodic line they play over the riff: 
D|-0--2--5--0---9-| 
(repeat accordingly) 


G5                     C5       G5                          C5 
Come pick me up in the morning, I know you probably thought about it too 

G5                            C5    G5                            C5 
Otherwise I'll never leave my oven, my arms & legs they will grow soft with you 

G5                     C5       G5                        C5 
Come pick me up in the morning, and we can find a hole to crawl into 

G5                           C5 
We're still pretending to be light-weights 

G5                          C5 
My arms and legs would grow soft, oooh ooh ooh 

G5                  C5       G5                          C5 
Behind his smile is nothing, long hair's a signal to the wandering eye 

G5                           C5 
Anytime I'll leave my coffin gladly 

G5                               C5 
My arms and legs they would grow soft and die 

G5            C5           G5          C5 
Someone broke into my heart or beat it into my head 

G5               C5            G5          C5 
Several hours to drive home or fall alseep instead 

D5          C5    D5            C5   
So think it over, just think it over don't let me down 

D5          C5    D5            C5 
So think it over, just think it over I'll be around 

Go out on this riff: 
G5 E5 G5 E5 C5 D5 (go out on an E)