The “Wrecking Ball” singer announced the news on Wednesday with a series of touching tributes on her Instagram Stories.
In the first post, Cyrus shared a video of herself holding Pig Pig over her shoulder as the pet was fed an apple.
“Very sad to say… my dear friend Pig Pig has passed away…. I will miss u always,” Cyrus wrote.
“Thank you for so many laughs and good times girl”.
In a separate post featuring Pig Pig as a young piglet, Cyrus shared a selfie of her kissing her beloved pet.
“I will miss you Pig Pig” she captioned the photo, alongside a pig and broken heart emoji.
Cyrus first adopted Pig Pig in August 2014 following the death of her pet dog Floyd in April.
The animal lover and vegan advocate currently owns seven dogs, four horses, and three cats, while her husband Liam Hemsworth also owns a dog.
In December, the star recalled how Hemsworth saved her pets from the fire that destroyed their Malibu home in November.
Speaking on SiruisXM’s Howard Stern Show, Cyrus said: “Liam, I’ve never loved him more for this.
“He was so incredible — he got all the animals out in his truck. He put two pigs in crates, which I tell you is so hard.”
The singer went on to explain how her husband managed to get the pigs out to safety.
“He said, ‘The only thing I could do was get a really powerful hose and spray them in the ass,’” Cyrus said.
“So he just chased the pigs into the crate, which was genius.”
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