I present you the chords to Jacqueline Emerson's 'Peter Pan'!
You can tune your guitar half a step down, but using the standard tuning will work as well! 

Am                 Dm          C           G
  Everyone's on a rocketship leaving the earth ooh-oh-oh
Am                Dm             C       G
  Shooting up so fast into the great unknown
Am                    Dm              C         G
  Letting go off the nursery ryhmes locked on land ooh-oh-oh
Am                 Dm        C         G
  Left behind in another time all alone

Am          Dm       Am           Dm
I know that I can't be a kid forever
Am          Dm       Am             Em
I know that I must live it now or never

       Am           Dm          C                        G
'Cause I'm not like Peter Pan I can't live forever in a Neverland
Am                 Dm            G               Am
I'm not gunna grow up too fast, I want my childhood to last
Am                Dm                 C                  G 
I'm not like the boys and girls who live in their never-aging world
  Am                        Dm               C       G
I wanna freeze time at the drop of a hat but even I can't do that

Am     Dm     C      G   
 Oh-oh, oh-oh, oh-oh, ooh
Am     Dm     Em
 Oh-oh, oh-oh, ooh

Am Dm C G
I see 'em taking off I see 'em going so fast oooh-oh-oh
Watch 'em leaving me behind as part of their past
Putting up a cover in a world their own oooh-oh-oh
With their painted faces standing all alone

Am          Dm       Am           Dm
I know that I can't be a kid forever
Am          Dm       Am             Em
I know that I must live it now or never

       Am           Dm          C                        G
'Cause I'm not like Peter Pan I can't live forever in a Neverland
Am                 Dm            G               Am
I'm not gunna grow up too fast, I want my childhood to last
Am                Dm                 C                  G 
I'm not like the boys and girls who live in their never-aging world
  Am                        Dm               C       G
I wanna freeze time at the drop of a hat but even I can't do that

Am     Dm     C      G   
 Oh-oh, oh-oh, oh-oh, ooh
Am     Dm     Em
 Oh-oh, oh-oh, ooh

Am            G                 Dm 
  Everyone's pushing for us to grow up
                  C      
but everything's happening way too fast
Am              G                      Dm
  Everything's changing, it's all rearranging
                   Em
But you only live once

       Am           Dm          C                        G
'Cause I'm not like Peter Pan I can't live forever in a Neverland
Am                 Dm            G               Am
I'm not gunna grow up too fast, I want my childhood to last
Am                Dm                 C                  G 
I'm not like the boys and girls who live in their never-aging world
  Am                        Dm               C       G
I wanna freeze time at the drop of a hat but even I can't do that

Repeat Chorus (or sing the Oh's)

Am             Dm          C                        G
I'm not like Peter Pan, I can't live forever in a Neverland
Am     Dm     G      Am   
 Oh-oh, oh-oh, oh-oh, ooh
Am                Dm                 C                  G 
I'm not like the boys and girls who live in their never-aging world
Am     Dm     G      Am   
 Oh-oh, oh-oh, oh-oh, ooh

At the last part, you can either sing the 'oh's' or repeat the chorus as well. (:

That's it! I hope it helped!