Jennifer Aniston is ecstatic about something!

The 43-year-old actress made an appearance on Jimmy Kimmel Live on Tuesday, and she was accompanied by fiance Justin Theroux, who ditched his usual all black attire for a bright white shirt!

These two are always a sight for sore eyes.

Hollywood biggest celebrities and musicians are banding together against gun violence.

Jennifer Aniston, Jamie Foxx, Selena Gomez, Reese Witherspoon, Gwyneth Paltrow and Beyonce are just a few of the stars who are taking part in a new PSA for Demand A Plan ... a grassroots initiative that demands President Obama and Congress step forward with a plan to end gun violence.

In the video, the stars ask the following questions: “How many more colleges? How many more classrooms? How many more movie theaters? How many more houses of faith?”

The campaign was created following the school shooting in Newton, Connecticut that claimed the lives of 28 people, including 20 children.

Jennifer Aniston spent four hours at a spa in Beverly Hills on Saturday, and when we caught her walking in to her appointment, she showed off what looks like a tiny baby bump!

After our photos of her covering up her stomach the other day (not to mention those reports that she's not drinking and that she's dropped out of two movies next year), all signs seem to point to the 43-year-old actress being pregnant!

Meanwhile, fiance Justin Theroux gave us his very best stink eye when we spotted him shopping in Beverly Hills:

Jennifer Aniston went Christmas shopping in Beverly Hills on Wednesday, and we weren't quite able to get a glimpse at her belly, but she was in an awfully good mood!

After a trip to Barneys last weekend with fiance Justin Theroux, we've been wondering why Jen kept her stomach covered with a sweater, and now that she's cleared her movie schedule for the next year, it does seem like there could be a bun in the oven!

And if that isn't enough evidence that the 43-year-old actress is preggers, a source tells the Daily Mail that Jen skipped out on sushi and alcohol at the party she and Theroux threw earlier this month. "They had a margarita bar, but she didn't go near it, opting for water instead. It was so unlike her and didn't go unnoticed. She was also picky with what she ate, and didn't touch the huge sushi platter, which is one of her favorite foods," an insider told the site.



Could Jennifer Aniston have a BIG surprise for fiance Justin Theroux this Christmas??!!

The actress sure seemed to be making a concerted effort to hide her stomach area with her sweater Saturday as she and Justin left Barneys in Beverly Hills after a quick pre-holiday shopping trip.

Aniston's 43, but these days lots of women are having babies into their 40's and the super-healthy Jen would seem to be a perfect candidate.

As X17online reported exclusively, Jen and Justin threw a party at their house last week and kids were invited ...

Now, will the baby shower come before the bridal shower?



Jennifer Aniston and Justin Theroux threw a HUGE base at their Beverly Hills mansion last night, to celebrate their recent engagement, X17online can report exclusively.

Friends like Demi Moore, Ben Stiller, Lake Bell, Ellen DeGeneres and Portia di Rossi turned out for the big bash.

Guests arrived in casual attire, with gifts. The party started around 7pm and some of the revelers, like Demi, left around 11pm.

A DJ played alternative music ... not too loud ... while the party went on inside and rain poured down outside.

Jen and Justin were engaged in mid-August while Aniston was filming We're the Millers in North Carolina. The two dated for just over a year after meeting on the set of Wanderlust.

Looks like quite the palatial pad!

Jennifer Aniston and fiance Justin Theroux purchased this Bel Air mansion at the beginning of the year, but before they move in, the love birds want to make sure their love nest undergoes all the necessary renovations!

Construction is in full swing on the 8,500 square foot property, and it is expected to be completed by early 2013. The Friends actress is already hard at work furnishing her future residence, though, as she was recently spotted shopping for home wares with her beau.

The engaged couple's abode sits high atop the Santa Monica mountains and overlooks the Pacific Ocean. It is part of a gated community with neighbors that include Nicholas Cage and Lauren Bacall.

Only Miss Aniston would rip out an on-site vineyard to add a pool and jacuzzi. The 43-year-old must have needed a place to tan her hot body!

The price for this mansion?

A whopping $21 million!

Jennifer Aniston and her equally sexy fiance Justin Theroux both looked stunning while walking the red carpet together at the 26th American Cinematheque Award Gala in Beverly Hills.

The couple, who got engaged over the summer, are clearly so in love!

Just yesterday, we snapped the lovebirds cruising around Beverly Hills in her new Porsche Panamera sports car ... with Justin behind the wheel.

We can already envision how gorgeous their wedding photo is going to turn out.

See who else attended the awards gala, honoring actor Ben Stiller, in our gallery below.