it's all in my head

"pa-pa-pa poker face, pa-pa poker face"

I cannot get that line out of my head! I keep singing it in my head and doing robot arm dance moves...
I can't really tell for sure, but I think 99% of the words to that song are some form of "he can't see through my poker face", over and over. (Kind of like how "just dance" comprised 95% of her other song. With the remaining 5%, of course, being incomprehensible nonsense.)
I really hate that this song is so catchy and gets stuck in your head. Kind of like the National Anthem. Oh wait, maybe that's the song you're supposed to sing when another song is stuck in your head. I can't remember.
And now I have a hodgepodge of mixed-up lyrics and melodies in my head.
Dang it.