I did an acoustic version of this song on guitar, and this is what I came up 
with.  I think it's a whole step lower than the actual song.  Enjoy! :)

Intro: C F Am G x2

C (x32010@1)             F (133211@1)                 Am (x02210@1)             GYou (320003@1)and I are young, What makes it wrong For us to fall in love
C (x32010@1)                    F (133211@1)                 Am (x02210@1)               GAnd (320003@1)either way, we'll never change, We'll talk and touch the day away

C (x32010@1)           F (133211@1)
Now would you love me if I was crazy? 
Am (x02210@1)                       GGirl, (320003@1)I'm going crazy for you I'm crazy for you
F (133211@1)                       GLets (320003@1)waste away together, We can stay this way forever

C (x32010@1)               G (320003@1)                AmBecause (x02210@1)we're never gonna be as young as we are tonight
                 F (133211@1)             CWe'll (x32010@1)let the world know we're alive
                G (320003@1)              AmWe're (x02210@1)here to chase the flashing lights
       FJust (133211@1)wait and see
      Am (x02210@1)              CThen (x32010@1)there's no need to complicate it
F (133211@1)                CThis (x32010@1)will be our year to take it
       Am (x02210@1)               G (320003@1)             CWe're (x32010@1)never gonna be as young as we are tonight

F (133211@1)Am (x02210@1)G (320003@1)  C (x32010@1)              F (133211@1)            Am (x02210@1)              G (320003@1)              CI (x32010@1)like the way you throw away the keys, forget your car to walk with me
               F (133211@1)         Am (x02210@1)             GThe (320003@1)way you always find a way to see the finer things

C (x32010@1)           F (133211@1)
Now would you love me if I was crazy? 
Am (x02210@1)                       GGirl, (320003@1)I'm going crazy for you I'm crazy for you
F (133211@1)                       GLets (320003@1)waste away together, We can stay this way forever

C (x32010@1)               G (320003@1)                AmBecause (x02210@1)we're never gonna be as young as we are tonight
                 F (133211@1)             CWe'll (x32010@1)let the world know we're alive
                G (320003@1)              AmWe're (x02210@1)here to chase the flashing lights
       FJust (133211@1)wait and see
      Am (x02210@1)              CThen (x32010@1)there's no need to complicate it
F (133211@1)                CThis (x32010@1)will be our year to take it
       Am (x02210@1)               G (320003@1)              F (133211@1) GWe're (320003@1)never gonna be as young as we are tonight

C (x32010@1)      FIf (133211@1)I'm Romeo
             AmAnd (x02210@1)you're Juliet
                 GAs (320003@1)long as I'm breathing
                  CI'll (x32010@1)love you to death
                    FForget (133211@1)all your friends
                  AmWe're (x02210@1)nothing to them
GI (320003@1)swear
C (x32010@1)         FI'll (133211@1)do anything
                  Am (x02210@1)    
That you want me to
                   GThey (320003@1)tell me I'm crazy
                  CFor (x32010@1)falling for you
                  AmWe'll (x02210@1)say what we are
                 FThey (133211@1)know how we do

Chorus x2