CAPO on 2nd fret, This is the simpler version to the original.
Tutorial for strumming and chords http://www.youtube.com/watch?v=lV15nHCJ6N8
Chords compiled and posted by Rayyan Jafri :)

C                       G
    You walk into the room
                 Am
So perfect but unaware
            F
Making me stop and stare
        C                          G
Every time I heard he broke your heart
             Am
Can I just fix you girl?
                F
Show you a different world?
G                   Am
    I'll take you anywhere
F                      C
    I'll put you on a throne
G                    A
    I'll lay down my heart, I swear
         F                             G
And I'll make sure that you'll never be alone
C         G      Dm
Only my shadow knows
      F
How I feel about you
C        G       Dm
Only my shadow goes
           F               Am
Where I dream of you and me
                 G
Should I go or wait?
           F          C
Is it too soon, too late?
Dm                 F
Only my shadow knows
2nd verse goes the same as the first one.
I've been loving you so long
And now that I got the chance
I see you need to dance on your own
So I'll wait another day
Maybe another year
I'm gonna be right here, oh
I'll take you anywhere
I'll put you on a throne
I'll lay down my heart, I swear
And I'll make sure that you'll never be alone (alone)
Only my shadow knows
How I feel about you
Only my shadow goes
Where I dream of you and me
Should I go or wait?
Is it too soon, too late?
Cause only my shadow knows
   Am                           G
I wish I could say all these words
             F                          Am
All these things that your heart never heard, yeah
    Am                        G                    F
But I saw the pain in your eyes and it sealed my lips
C         G      Dm
Only my shadow knows
F
How I feel about you
C      G         Dm
Only my shadow goes
          F               Am
Where I dream of you and me
                 G
Should I go or wait?
            F          C
Is it too soon, too late?
Dm                 F           (A)
Only my shadow knows, ey
Am                 G
Only my shadow knows, oh oh
Only my shadow knows