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Hints on the star's Twitter page suggest that she plans to reveal the song in full this Sunday, the day at a performance in London. Gaga shared footage of her rehearsals for it.
The rest of the video shows the singer angrily banging on a drum set, screaming the word "swine." She's also dubbed her performance "#SwineFest" and is expected to debut more from ARTPOP at the concert, which will be live streamed on iTunes around the world.