F                                           
And if you wanna get it done, then you gotta get the one
    C                      Em
The one who's got it going on
       Bm                        G   
If You wanna make it last, gotta know just who to ask
Em                  F#
Baby's gotta be the best, (some mumbled groans by AJ)
F#    
If you want it to be good girl, get yourself a...bad boy
Bm                     G
(horns and 'Oh yeah...')If you really want it good girl, 
                           Bm
Gotta get yourself a (bad) bad boy, (ee-hee)
               G                   Em
Get it like it could be, would be, yeah like it should be
       F#                                             Am / A
If you want it to be good girl, get yourself a...bad boy

(Repeat for second verse and second chorus)

Breakdown is tricky, mainly synthesizer. I couldn't figure it out.

(Ends with third chorus and outro)
                      
                      Bm
If you really want it good (If you really)
                      G
If you really want it good (I like this)