Kimora Lee Simmons, director of the Baby Phat clothing line, bares almost all in a new ad for People for the Ethical Treatment of Animals (PETA), covered only in angel wings and her rescued dog, Zoe.

The ad, for peta2, the organization's youth branch, is called "Be Your Dog’s Angel,” and it urges people to take better care of their dogs. Kimora’s message is directed specifically at the practice of chaining dogs.

“Play with them … take them for long walks … don’t ever chain or cage them,” she says.

PETA, which last month unveiled a campaign featuring Ultimate Fighter Mac Danzig touting vegetarianism, has taken some heat for it's latest choice of spokesperson from critics who have pointed out that Simmons uses rabbit fur in some of her designs.

As for where the feathers came from to make the angel wings, we'll just assume they were left over from old Victoria's Secret ads.

The model and fashion designer, who says she has been rescuing animals off the streets since she was a small child, says chaining should never be an option.

“You cannot chain a dog — the chains are heavy; it’s cruel,” she says. “[Dogs] need to run and play ….”

The ad is not the first by PETA to make use of naked celebrities. Christina Applegate served as a previous PETA nude spokesperson.

Here's Simmons' spiel on video: