Paris Hilton dined at Mr. Chow in Beverly Hills with beau River Viiperi and her parents on Saturday night, and the heiress slipped into a super hot red dress and fishnet stockings. That's one way to get into the holiday spirit ... and get our attention!

After dinner, P and River went home to watch movies (Elf and This Is 40, if you must know), and River tweeted, "After a Wonderful Dinner W/ my Baby Love @ParisHilton, @KathyHilton & Rick Hilton @Mrchows, Time to pack & watch a Movie #Aspen #DoubleDate." Sounds like a blast!

Mad Men star Jon Hamm and longtime girlfriend Jennifer Westfeldt were spotted holding hands in Los Feliz on Saturday afternoon, and we can't believe these two have been together for 14 years! That's practically an eternity in Hollywood!

However, it doesn't look like Jennifer is going to be walking down the aisle anytime soon, as reports popped up earlier this fall that her beau has no interest in making things official.

"Jon and Jennifer have talked marriage before, but he's always shied away from it," a source told the National Enquirer. "Now, Jennifer's at a stage in her life when she wants stability, security and a family. So she worked up the nerve and told Jon it was time to get married or she was moving on. [But] Jon angrily told Jennifer that a wed­ding was not in their future. He said, 'If you want to get married, go right ahead. There's the door. Go find someone else to marry because it's not going to be me!'"

Um, yikes! But do we really believe that?

That is, a hug and a quick smooch on the cheek from a very attractive flight blonde attendant with a bottle of beer in her hand!

Over the weekend Johnny Depp was snapped taking off in his private jet, and we're not sure where he's headed, but he's definitely not bringing his kids with him! Maybe he's meeting up with rumored lady love Amber Heard for a romantic getaway?

Last night a bra-less Rihanna and a girlfriend went to Las Palmas in Hollywood, and the R&B superstar was NOT in the mood to have her photo taken. Maybe she was feeling a little stressed over work and the drama with her on-again/off-again beau, Chris Brown? That's our best guess...

After spending the day at the studio doing voiceovers for the upcoming animated flick Happy Smekday, RiRi tweeted, "Had a blast today! So weird recording for animation, but I get to keep my accent! AND it's PG, which mom should be happy about! Brrrap!!" So what was next on her agenda? Party time! Rihanna wrote, "Mama gets to blackout TONIGHT!!!!"

Hope she had fun!

It may be December, but Mel Gibson is still rocking his man sandals!

The actor was snapped shortly after landing at Los Angeles International Airport on Saturday night, and he was all smiles as he strolled through the terminal to his car. Mel purchased a few properties in Panama so he does spend quite a bit of time in the country, but it sounds like he's also still trying to get filming started on a biopic about Vasco Nunez Balboa, a Spanish conquistador. Apparently Mel's been working on the project since 2007, so maybe 2013 will be his lucky year?

But back to Mel's outfit ... weren't his toes freezing?!

Gotta get that java fix!

Earlier today, Britney Spears and her sons Sean Preston and Jayden James took on the cold Calabasas morning air to score some coffee at a local Starbucks.

The 31-year-old singer and X Factor judge, who wasn't with fiance Jason Trawick, has enjoyed a pretty eventful week, having endured another unfortunate loss on the hit reality show (Emblem3 was eliminated) and being named Forbes' top earning female honors for the year. All in a year's work for Brit Brit!

Paris Hilton has a heart of gold!

The blonde heiress spent the day visiting sick children at Children's Hospital of Los Angeles, and by the looks of it, everyone had a great day.

Princess P, who brought along beau River Viiperi, came in with huge bags full of toys. Hilton spent most of her time in the cancer ward going room to room doing arts and crafts.

A source at the hospital tells X17online exclusively:

"Paris is such a good sweet person. She comes to visit us often, and when she does, the children light up and come to life when she's around. She is so down to earth and sweet. Lovely girl."

While at the hospital, Paris also donated money to help expand the children's cancer wing. The holidays are in full swing!

Lots of life-changing experiences for celebs today!

Kelly Clarkson Engaged
Kelly Clarkson told Ellen DeGeneres she's engaged to boyfriend Brandon Blackstock. The former American Idol winner Tweeted today, "I'm engaged!" the day after accepting her b-friend's proposal. "I wanted y'all to know! Happiest night of my life last night! I am so lucky and am with the greatest man ever," the singer Tweeted.

Jessica Simpson Walks Down The Aisle
Meanwhile ... Jessica Simpson's BFF CaCee Cobb married long-time love, Scrubs star Donald Faison. The happy couple tied the knot at pal Zach Braff's LA home. A pregnant Simpson was one of Cobb's bridesmaids and Jess' separated parents, Tina and Joe also attended, along with her fiance Eric Johnson and sister Ashlee.

Marisa Miller Has A Baby Boy
And in other news ... Victoria's Secret model Marisa Miller gave birth to a boy, Gavin Lee Guess, in Santa Cruz, Calif. today. The model mom released the following statement: "I'm completely overjoyed by the birth of our son. I feel so blessed to be a mom and am so excited to experience this next part of life."

Congrats too all these celebs ... at least there's some good news today!