Hiii!! I'm not 100% sure about this tab, I made it by ear! But I hope it sounds ok! :) 
follow me on twitter @mashtonishing

Intro
D Dsus D Dsus D Dsus G A

D 
It started with a picture,
G           A
Those messages you sent to me,
D
You?re like the perfect mixture,
G        A
Of Megan Fox and Katy.


D
It?s such a sick obsession,
G              A
And now you?ve got the best of me,
D
I?ve got the worst intentions,
G           A
So call me over set me free. 

Bm    A                   G
   I can give you what you want.

[Chorus]
               D
It?s taking me over,
               G                A
I don?t wanna play this game no more,
D
All you gotta do is tell me right now,
    G                  A
You want me right now, come on,
             Bm
Give me the green light,
              A
We could have all night,
   D        A       G
If you just say the word,
           Bm
Tell me it?s alright,
            A
Give me the green light.


D Dsus D Dsus D Dsus G A

D
You got me where you want me,
G             A
I?m hanging on your every word,
D
It?s such a twisted story,
G
How you got me,
A
How you got me.

Bm     A                    G
   Let me give you what you need.

[Chorus]
               D
It?s taking me over,
               G                A
I don?t wanna play this game no more,
D
All you gotta do is tell me right now,
    G                  A
You want me right now, come on,
             Bm
Give me the green light,
              A
We could have all night,
   D        A       G
If you just say the word,
           Bm
Tell me it?s alright,
            A
Give me the green light.


D Dsus D Dsus D Dsus G A X2


Bm     A                    G
   Let me give you what you need

[Chorus]
               D
It?s taking me over,
               G                A
I don?t wanna play this game no more,
D
All you gotta do is tell me right now,
    G                  A
You want me right now, come on,
             Bm
Give me the green light,
              A
We could have all night,
   D        A       G
If you just say the word,
           Bm
Tell me it?s alright,
            A
Give me the green light.

D Dsus D