Transition played between every B and G#m / every E and F# (except for Verse 3):
e|---------|
B|---------|
G|---4-6---|
D|---4-4---|
A|---------|
E|---------|

Suggested tab :
e|-------------------------------------------------------------------|
B|------4-------------------------------0---------------2-------2----|
G|------4-------4-6-----4-------4-------1-------4-6-----3-------3----|
D|------4-------4-4-----6-------6-------2-------4-4-----4-------4----|
A|--2-------------------6-------6-------2---------------4-------4----|
E|------------------4-----4-4-------0---------------2-----2-2--------|
    B               G#m             E               F#

[Intro]
N.C.
(Baby, baby, baby, baby)

[Verse 1]
           B                              G#m
Yes, I did dance with your mother 'fore I knew her name (Baby)
         E
Before I knew her name
         F#
Before I knew
       B                              G#m
Had a laugh with your mother, went on our first date
             E
I said, "I'm glad you came"
             F#
She said, "I feel the same"
N.C.
So, how about that now?

[Chorus]
B        G#m
Baby (Baby)
                        E   F#
What a beautiful thing
       B          G#m
I said, "Baby" (Baby)
                         E    F#
"What a beautiful thing"

[Verse 2]
      B                            G#m
I got wild with your mother, ended on the bed
                   E
She said, "Kiss me on the neck"
                 F#
So, I kissed her neck
               B
Took really no time with your mother
        G#m
You had bigger plans
                  E
I said that, "I'm half a man"
               F#
"And darling I can't, or maybe I can?”
F#
How could you know?

[Chorus]
N.C.         G#m
Baby (Baby)
                         E   F#
That's a beautiful thing
               B          G#m
How could you know, baby?
                          E   F#
What's a bеautiful thing?

[Verse 3]
    G#m          D#m                   Emaj7      F#
So, I touch your belly about a million times, Lord
            D#m               E     D#m G#m
"How long until you land?", okay, baby
                               D#m         E   F#
Becausе we're waiting for you, Baby (Baby)
         B                              G#m
Went to chat with your mother, then the doctor came
           E
I said the doctor came
                  F#
Well I said, "Hey, Doc"
         B                            G#m
Tried to laugh with my baby, then she made that face
                    E                          F#
I said, "If I could take your pain, you know I would"
F#
"You know I would"

[Chorus]
                 B           G#m
"Here comes your baby" (Baby)
                              E    F#
Well that's a beautiful thing
                  B       G#m
Said I'm with it now, baby
                            E    F#
That's a a beautiful thing
                   B        G#m
I said, "What about, 'Baby'?"
                            E    F#
"That's a pretty good name"
                   B         G#m
I said, "What about, 'Baby'?"
                           F#
"That's a pretty good name"
    F#   G#m         B
And here comes your baby