It's simply

C Am Dm G

through the whole song if you want to sing along. It doesn't exactly sound like the 
original one if you don't want to change the tune of your guitar. Add a capo on 1 or 2 if 
you want to ;)

http://youtube.com/EasyTabber


my angel
how'd you get to be so fly?
hod'd you get to shine so bright, girl?
how'd you get to look like that?
heaven don’t you call her back
yeah

halo, halo
im not sayin hi
baby, theres a ring above your head
and it shines so bright in the sunlight, in the sunlight

halo, halo
this is like a dream
every bit of you, it makes me weak
how did i get here? in the sunlight, in your sun

i must be in heaven
cause im looking at an angel
whos staring back at me
her eyes so heavenly

i must be in heaven
cause im looking at an angel
theres no one on this earth
thats made this beautiful
i must be in heaven

here we are, looking at the stars
i can hear the beating of your heart
i could listen to this song forever

youre the breeze, cruising down the coast
youre the jelly, baby i’m the toast
its so sweet when we’re together

and if i ruled the world
i’d name an island for ya
you can tell all your girls
i named an island for you

i must be in heaven
cause Im looking at an angel
whos staring back at me
her eyes so heavenly

i must be in heaven
cause i’m looking at an angel
there’s no one on this earth
that’s made this beautiful
i must be in heaven

halo, halo
im not sayin hi
baby, theres a ring above your head
and it shines so bright in the moonlight, in the moonlight

my angel
how'd you get to be so fly?
how'd you get to shine so bright, girl?
how'd you get to look like that?
please heaven don’t you call her back
oh

my angel

my angel