Stallone Shows Off Daughters, Broken Neck on 'Late Show'Sylvester Stallone revealed two very disparate aspects of his life on Monday's 'Late Show.'

There was the estrogen-packed family side: His wife and three young daughters were introduced from backstage. The girls bounced up and down on the green-room couch. "A...D...D," crooned Stallone. They waved and yelled "hi" to the camera. "Keep that sugar goin', honey!" joked their father.

Then came the macho side with which we're all familiar.

David Letterman then showed Stallone's X-ray, asking him to explain the "foreign object" in his neck vertebrae. During a fight scene for 'The Expendables,' wrestler "Stone Cold" Steve Austin gave Stallone a hairline fracture.

"So they had to take cadaver bones -- which means I have a couple of ghosts walking around in my neck -- cadaver bones put together, and screw it in," explained the actor, who also directed the film.