Cyrus, 21, recently posted pictures of pig Bubba Sue getting a pedicure on Instagram, reported People magazine.
The first photo shows a friend painting Bubba's nails. Cyrus was holding and brushing her pot-bellied pet while it got the spa treatment. She then showed off Bubba's fire-engine red polish, captioning the photo "pig pig gonna be looking fresh."
Animal lovers were not happy with the pictures, with some calling the pop star 'a pig' for doing that to her pet.
Other fans, however, stood by the controversial pop star's porcine pedicure. One wrote, "That nail polish is not hurting the pig. And that is not abuse."
Cyrus adopted Bubba Sue in August, a few months after the death of one of her beloved dogs, Floyd. She is yet to comment on the issue.