Chorus and Intro (Intro without words):
      D      A              B           G
     I Don't wanna grow up, Don't wanna Figure this out
      D        A           B               G
     I Know you set me up, Don't want this getting you down


I'll try to get the rest up later but this is all I know of it so far.
from the movie 16 wishes
requested tab:
e|--------------------------------------------------------------------|
B|--------------------------------------------------------------------|
G|--77--------------------77------------------------------------------|
D|--77-77777--999--55555--77--77777--999--55555-----------------------|
A|--55-77777--999--55555--55--77777--999--55555-----------------------|
E|-----55555--777--33333------55555--777--33333-----------------------|

This isn't entirely accurate but it's very close and this will help you figure it out so 
have fun with it
(also the chords to FTSK: what do you want from me)