This was a request, so here it is:) 
Not perfect but it's something to work on. I kept out some of the pull-offs, cause 
they are not very easy, and if you can do them, you can certainly listen to the 
song and know where they are :)

Chords
   G (320003@1) G7Cadd9 Em7
e|-3---3---0---0-|
B|-3---3---3---3-|
G|-0---0---0---0-|
D|-0---2---2---2-|
A|-2---0---3---2-|
E|-3---1---x---0-|

Capo on 5th fret

GG
I helped you find her diamond ring 
G (320003@1)                         G7 (320001@1)    Cadd9 (x32030@1)You made me try it on and everything
GTomorrow (320003@1)you both say "I do"
G (320003@1)                                      G7 (320001@1)  Cadd9I'll (x32030@1)be there cause that's what best friends do

Em7               Cadd9 (x32030@1)  G (320003@1)           DI (xx0232@1)should win an Oscar, best actress in a show
Em7              Cadd9 (x32030@1)      D (xx0232@1)              GYou (320003@1)always see me smilin', little do you know

Cadd9G       Cadd9G
I'm lying, I'm a liar
           Cadd9G      DThe (xx0232@1)biggest liar in the world
     Cadd9G     Cadd9G
I'm crying, I'm crying
           Cadd9G      D (xx0232@1)  Cadd9Like (x32030@1)I've never cried before

GI (320003@1)know you always heard me say
G (320003@1)                               G7 (320001@1) Cadd9 (x32030@1)You'll meet the perfect girl one day
GThe (320003@1)night you called and told me the news
G (320003@1)                            G7 (320001@1)    Cadd9 (x32030@1)I said I couldn't be more thrilled for you

Em7               Cadd9 (x32030@1)  G (320003@1)           DThis (xx0232@1)might be funny timing, probably doesn't matter now
Em7              Cadd9 (x32030@1)      D (xx0232@1)                   GI (320003@1)never thought I'd say this, but I just figured out

Cadd9G       Cadd9G
I'm lying, I'm a liar
           Cadd9G      DThe (xx0232@1)biggest liar in the world
     Cadd9G     Cadd9G
I'm crying, I'm crying
           Cadd9G      DLike (xx0232@1)I've never cried before

Cadd9
If I ever tell you
        Em7
That I've found the perfect man
           GThat (320003@1)he's everything I ever wanted
             Cadd9Just (x32030@1)as I had planned

Cadd9G       Cadd9G
I'm lying, I'm a liar
           Cadd9G      DThe (xx0232@1)biggest liar in the world
              Cadd9G        Cadd9G
Cause I'll be crying, I'll be crying
           Cadd9G      D (xx0232@1)  Cadd9Like (x32030@1)I've never cried before

GI (320003@1)helped you find her diamond ring 
G (320003@1)                         G7 (320001@1)    Cadd9 (x32030@1)You made me try it on and everything