Capo 2nd Fret :P 

Verses:
E         B      F#m   
 
Prechorus ("oh oh ohhh"):
C#m   A   E    
 
Chorus ("let me in, for a minute or two"):
E   C#m11   F7   Emmaj9
 
Bridge ("L E T M E I N.."):
E    A7    C#m    Emmaj9


Lyrics
I'll be anything you want me to be
i'll make your breakfast, make your bed
but please just let me in your head
A penny for your thoughts, and here's a pound
 
Won't you let me in
To that window to your head
But you've made it pretty clear
That the window will be closed,
'till the day that you are dead
 
oh oh
Yes that's me downstairs tapping on the
window ow again
 
Let me in for a minute or two
I just want to spend a bitta time with you
And if you promise not to hate then I won't interrogate
We've got too much history
to be a part of this mystery
So let me in! :)
 
You are a closed door
And I used to have the key
Yes, you knew me once before
More than the stranger you now take me for
 
and no there's no danger, no it's not bad
you've clearly forgotton, what we once had
And it was good, and it still can be
 
oh oh
Yes that's me downstairs tapping on the
window ow again
 
Let me in for a minute or two
I just want to spend a bitta time with you
And if you promise not to hate then I won't interrogate
We've got too much history
to be a part of this mystery
So let me in! :)
 
L-E-T M-E I-N (x3)
you know that we've been here before
But I have no problem breaking down this door
 
oh oh
Yes that's me downstairs tapping on the
window ow again
 
Let me in for a minute or two
I just want to spend a bitta time with you
And if you promise not to hate then I won't interrogate
We've got too much history
to be a part of this mystery
So let me innNnNnnnNnN