Kristen Johnston has become the latest celebrity to pose nude for PETA.

The former '3rd Rock from the Sun' star - who recently caused concern with her drastic weight loss - poses as Lady Godiva, naked and astride a horse, in the photograph which debuted in New York's Central Park yesterday.

The 41-year-old actress has joined forces with the animal rights group to campaign against the horse-drawn carriage rides on offer in New York.

She said: "I was blown away by how these horses live, or actually I should say, don't live. I'd say to tourists who are considering coming to New York, there's so much amazing stuff about Manhattan. Oh my God, just take a walk! And I hope within the next year that there are no more carriage horses."

WENN