PARIS - The French artist who spent a week entombed inside a rock began an even more bizarre feat on Wednesday - sitting on a dozen eggs until they hatch.

Abraham Poincheval aims to become a "human hen" by sitting and laying on the eggs inside a glass vitrine at a Paris modern art museum until the chicks emerge.

The performance, called "Egg", could last three to four weeks, with the artist getting only a half-hour break every 24 hours to keep him from cracking.