These are the chords for the acoustic version, as seen in this video: 
http://youtu.be/ObEiTVwizL0
These are my first chords, so don't be too hard with me ;)



Intro: A, E, Bm, D

Verse 1:

A 
 It was you and me 
E
 and one hot summer
F#m
 Beading up with sweat 
Bm
 all over each other 
D
 soaking wet.


A
 We didn't have a lot of time 
E
 so we didn't waste much
F#m
 Finding all the right places 
Bm
 you wanted me to touch.
D
 And all these memories 
D
 make it so hard to forget about me.

--------- Chorus:--------------
A                          E
 I bet you wish you had me back
                         Bm
Another chance to get it just like that.
             D
The best you ever had.

A                                E
 And do you close your eyes with her,
                      F#m
And pretend I'm doing you again
     Bm         D
Like only I can
                          A      E
I bet you wish you had me back.
                          Bm     D
I bet you wish you had me back.

----------------------------------------------------

Verse 2: (same chords like Vers 1: A, E, F#m, Bm, D)
It was you and me 
it seemed to last forever
The way you taste 
and I still remember 
the sounds we made.

One day in June 
I stayed all night,
And made love to you like 
the Fourth of July
And all these memories 
make it so hard to forget about me

--------- Chorus 2:--------------
A                          E
 I bet you wish you had me back
                         Bm
Another chance to get it just like that.
             D
The best you ever had.

A                                E
 And do you close your eyes with her,
                      F#m
And pretend I'm doing you again
     Bm         D
Like only I can
                          Bm
I bet you wish you had me back.

(((Bridge/Chorus:))
      F#m 
Every night
E     Bm
Every time
        D
You see me 
         E          A          E, D, D7, A
when you close your eyeeeeees.
                          E
I bet you wish you had me back
                         Bm
Another chance to get it just like that
     D            A        E
Like only I caaaaaaaaaaan, yeah
                    F#m
you wish you had me back
                           D7
I know you wish you had me back
                      D
Oh you wish you had me...