This is muppets canon:
Beakie is a bird-like monster with rainbow-colored hair, yellow eyes, and a large, spiky beak. She made her first appearance on The Muppet Show in episode 307, where she performed "You and Me" as a romantic duet with the song's co-writer and original performer, Alice Cooper.
At the conclusion of the number, it was revealed that Beakie was merely the form into which Miss Piggy had been transfigured when she sold her soul to the Devil.
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