The literal interpretations of a two year old.

Mama: "Finn, I've got the WonderPets song stuck in my head"

Finn: messed up mama's hair "Open up hair, get out of it"

Mama: "No Finn, it's not really INSIDE my head, you can't get it out like that"

Finn: now pulling mama's hair "Open it! Not stuck get out!"

And, just so it can be stuck in your head too ... Click Here ... (get a good giggle from the 'no copyright infringement intended, even though the images and sound totally belong to NickJr.')