My first tab... the Em could be about anything in the key. 
The actual song just has lead guitar, using D and G Major or Pent Major
What do you think?

D                  G
You... are crazy amazing
D                  G
You... are crazy amazing
D                  G
Feels just like a prayer
D                                Em
Oh I love you more every time I think of you
D                  G
You... are crazy amazing
D                  G
You... are crazy amazing
D                 G
I wear your heart on my sleeve
D                                Em
Oh I love you more every time I think of you
D                  G
You... are crazy amazing
D                  G
You... are crazy amazing
D              G
Home is wherever you are
D                                Em
Oh I love you more every time I think of you
D                  G
You... are crazy amazing
D                  G
You... are crazy amazing