I know this ain't 100% correct but it sounds okay 
when I play it. Easy, but it works!

Capo 3, standard tuning
-------------------------------
G                       D
Tonight I kinda get the feeling
                 Em
My girl is up to something,
C
Something that is no good.
G                       D
She said she only had a meeting,
                       Em
But she is dressed for something,
C
Something that is no good.
G                             Em
Now I'm not saying that she's cheating,
              C
But seeing is believing,

Can't believe it,
                               D
What I'm seeing when I stepped inside. 


Chorus:
G                D
She's so wasted, acting crazy
Em              C
Making a scene, like it's her birthday
G                   D
Drinking champagne, going insane
Em             C      
Falling on me, like it's her birthday

G
Eh, eh, eh, eh, eh, eh, eh
D
This ain't the night I thought it'd be
Em
Oh, oh, oh, oh, oh, oh, oh
C
She ain't shy, apparently
G
Eh, eh, eh, eh, eh, eh, eh
D
You can hear the crowd and everybody sings
Em
Oh, oh, oh, oh, oh, oh, oh
C
Like it's her birthday


G                           D
She turns and says don't be surprised
                Em
It's gonna be a good night
   C
A good, good night
G                            D
She's showing me a different side
                Em
What I've never seen before
     C
That I ignore
               G
Cause when I'm up she's all about me
          D
When I'm down, she spins around me
       Em
Now I know I'm one and only
      C
So I might as well enjoy the ride.


Chorus:
G                D
She's so wasted, acting crazy
Em              C
Making a scene, like it's her birthday
G                   D
Drinking champagne, going insane
Em             C      
Falling on me, like it's her birthday

G
Eh, eh, eh, eh, eh, eh, eh
D
This ain't the night I thought it'd be
Em
Oh, oh, oh, oh, oh, oh, oh
C
She ain't shy, apparently
G
Eh, eh, eh, eh, eh, eh, eh
D
You can hear the crowd and everybody sings
Em
Oh, oh, oh, oh, oh, oh, oh
C
Like it's her birthday