Judi Dench, Nathalie Emmanuel and Leona Lewis have lent their support to Stella McCartney's anti-fur campaign.
The designer donned a large bunny head and took to Instagram in a bid to encourage her followers to sign the Humane Society's petition to ban U.K. fur sales, and other stars followed by sharing similar videos on their own platforms.
Judi dressed up as a bird to deliver her message, saying: "Every year, 100 million animals are bred and killed for their fur to supply to the fashion industry.
"I'm Judi Dench and I've long been an advocate of animal rights. Please will you join Stella McCartney and me and sign a petition? Don't let them use fur. Please join us."
Leona, Nathalie, Maggie Q, Kat Graham, Rain Phoenix and Ariish also wore huge animal heads to help spread the word on social media.
Stella's father Sir Paul McCartney and her sister, photographer Mary McCartney, got involved, with the Beatles legend wearing a navy suit and giant beige bunny head as he made a cameo in videos shared on both his daughters' Instagram accounts.
He also posted a photo on Twitter, accompanied by the message, "No animal should be worried about losing their fur," as he urged his followers to sign the petition and create a "cruelty-free society".
The latest social media initiative follows on from Stella's AW 2021 campaign Our Time Has Come, which was launched earlier this month and featured people dressed as animals wearing sustainable luxury pieces in support of the Humane Society's petition to end the fur trade.
"Stella McCartney's new campaign and brand is everything the fur trade isn't - fresh, innovative, sustainable and cruelty-free," said Claire Bass, executive director of Humane Society. "So we're thrilled to be working with her, and to have the support of so many compassionate celebrities, to magnify the message that the age of fur fashion is dead.
"As the U.K. government considers our call for a ban on the import and sale of fur from animals who have suffered overseas, this light-hearted campaign sheds light on a serious subject."