(What your girl don't know)
   (What your girl don't know)
   Hanging round, trying to talk to me
   But I know, 'bout your history
   When it comes to playing games
   You should be in the hall of fame
   
   I'm not the kind of kiss
   I'm not the kind of tell
   But there's one thing I know very well
   You've got someone else waiting home for you
   You're playing her for a fool
   
   What your girl don't know
   That when she turns her back
   You're talking to me
   
   What your girl don't know
   That everything aint what it seems to be
   
   What your girl don't know
   All your little games and your lies
   She should know better but she doesn't realise
   I can write a book about everything your girl don't know
   
   I can't deny you qualify
   You've played the part a hundred times
   But that was then and this is me
   I'll make it clear so that you can see
   
   Now what goes around will come back around
   Time will tell what you're all about
   You can try to be who you want to be
   But everybody can see what your girl don't know
   
   (What your girl don't know)
   
   What your girl don't know
   That when she turns her back
   You're talking to me
   
   What your girl don't know
   That everything aint what it seems to be
   
   What your girl don't know
   All your little games and your lies
   She should know better but she doesn't realise
   I can write a book about everything your girl don't know
   
   (uh oh)
   
   So sad, it's a crying shame
   Too bad you're the one to blame
   Won't be long, til you feel the pain
   All alone in the pouring rain
   Gonna to get what's coming to you
   Gonna to pay for everything you do
   One thing that I know is true
   It's gonna catch up to you
   
   What your girl don't know
   That when she turns her back
   You're talking to me
   
   What your girl don't know
   That everything aint what it seems to be
   
   What your girl don't know
   All your little games and your lies
   She should know better but she doesn't realise
   I can write a book about everything your girl don't know
   
   I'm not the kind of kiss
   I'm not the kind of tell
   But there's one thing I know very well
   You've got someone else waiting home for you
   You're playing her for a fool
   (What your girl don't know)
   Now what goes around will come back around
   Time will tell what you're all about
   (What your girl don't know)
   You can try to be who you want to be
   Everybody can see what your girl don't know
   (What your girl don't know)
   All your little games and your lies
   She should know better but she doesn't realise
   I can write a book about everything your girl don't know