Peter Billingsley is best known for his role as Ralphie in the now classic 1983 film, "A Christmas Story." Guess what he looks like now!

Cameron Diaz spent her weekend going full throttle ... or at least as much as one can behind the wheel of a go-kart.

Diaz was spotted in Carson, CA at a place called Go Kart World. We're told Cameron was there serving as a chaperone to a group of about seven boys and girls.

According to our spies, Cam picked up the tab for everyone ($25 a piece) and was quite the skilled racer. She seemed to take it quite seriously ... winning the first race and finishing second in the next.

Perhaps something good came out of those "Charlie's Angels" movies after all.

Rooney Mara plays the title character in "The Girl with the Dragon Tattoo" -- and to celebrate the American remake opening today in theaters, we're taking a look at some other female superstars with mythical ink.

Can you guess which celebs have these three dragon stamps? Plus, check out more tatted up ladies!

Voila -- the first photos of Britney Spears' new engagement ring ... snapped as the singer and fiancé Jason Trawick partied the night away in Las Vegas.

3-carat round stone ... diamond-paved band ... not too shabby for the world's favorite 30-year-old pop legend.

TMZ broke the story -- Britney's hosted the intimate engagement celebration at the Planet Hollywood Resort and Casino, before taking the ring public at Jason Trawick's big celebratory dinner at the Chocolate Lounge in the Sugar Factory Resturant.

After the big dinner ... they hit up the Chateau nightclub and danced until the world ends.

The Kardashian/Jenner clan just released their annual holiday card -- and this year, it's in 3D!

Kim, Khloe, Kourtney, Kris, Bruce, Rob, Kylie, Kendall, Lamar, Scott and little Mason all went glam for this year's photo shoot -- with the entire family wearing black except for mama Kris, who sparkles in a green sequin dress.

According to Kim's official website, the card was shot by photographer Nick Saglimbeni and can be viewed in 3D with the correct glasses.

"I love our family Christmas cards shoots and I think this one looks amazing!" she added.

Check out some more closeups from the card above -- plus see the Kardashians' many holiday cards through the years.

Our favorite: The one with a Teenage Mutant Ninja Turtle.

We've mixed up a Hollwood hottie's face -- and now it's up to you to see through the scramble and guess the star!

The end of the year always brings Best-Of lists and various countdowns, but here’s a topic that’s not often discussed: those two celebs were hooking up?!