They are part of a campaign by vegan charity PETA, which also includes D?WN, Daniella Monet, Harley Quinn Smith, Cammie Scott, Yovana Mendoza, Jenné Claiborne, Renee Olstead, and Meg and Komie Vora of Los Angeles womenswear brand Delikate Rayne.
They are urging both consumers and businesses to consider the animals who are exploited and killed for fashion - and change their habits.
"The campaign features a new video in which the women share the reasons why they choose vegan leather, faux fur, wool-free knits, and other animal-friendly fabrics—and why they encourage their combined 8 million followers to do the same," says PETA.
"The campaign also includes a limited-edition PETA x Delikate Rayne faux-suede cap, 20 percent of the proceeds of which will go toward PETA's lifesaving work for animals."
PETA's fashion-forward video
"The true test of any nation is how it treats its innocent beings, and animals obviously fall into the category," said R&B singer Mýa says.
"I remember as a teenager, going shopping for purses and...someone trying to sell [one] to me as genuinely leather as if that was a good thing. I was, like, but isn't leather somebody’s skin?" added Evanna Lynch.
Musician D?WN believes positive dialogue can engender change: "We don't have to agree, but the conversation needs to be had," she said. "and I think we weren't even having the conversation before. That's changing."