The dancing went down after a boozy dinner at the home of Charlie's friend George Santo Pietro -- where the actor was accompanied by several porn stars and even a few non-professionals.

Just as shocking as Charlie's spastic MJ-esque impersonation -- a photo of a smiling Charlie showing off a mouthful of solid gold dental work. Captain Jack Sparrow would be proud!

Kacey Jordan -- a porn star who was at the party -- reportedly says "... he had to get gold teeth. Most of his teeth fallen out, he wouldn't say why."

Of course, Charlie's party marathon ended with a trip to the hospital ... followed by rehab.

Thomas Sangster is best known for his character Sam in "Love Actually" and Simon Brown in "Nanny McPhee." Guess what he looks like now!

Audrina Patridge is showing off her amazing body once again for Bongo -- and this time, she's stripping down to a bikini for the brand.

Patridge, who modeled jeans for the company last year, poses for the new ad campaign -- which includes a brand new line of swimwear!

The line of bikinis and clothing will reportedly be available at Kmart, Sears and online this March.

Check out the new photos -- and some behind-the-scenes shots -- above!

We did a little rhinoplasty on some of the biggest names in Hollywood -- but sometimes the original is best. Click through the pics and decide -- work ... or no work?

Try and guess which super celebrity had some serious (and non-gender specific) '80s hair!

Hair-larious.

Try and guess whose pretty face was given a gnarly celebrity scrambling ... compliments of TMZ!