Announcing the plan on Twitter, Gaga said: "Been racking my brain on what to get Little Monsters for Christmas!! I finally figured it out!!"
The suspense was obviously palpable, so she quickly offered up an answer.
"On Christmas Day I will leak to you an unreleased Song off 'Born This Way'! It was recorded live, in one take, on the tour bus. Uncensored."
There was also a snowman icon at the end of the sentence.
Gaga went on to reveal that she's been having trouble sleeping since arriving in Tokyo for Christmas, but has been amusing herself by performing solo fashion shows.