Her bun in the oven is starting to get big!

Olivia Wilde stepped out in L.A. today wearing spandex pants, a t-shirt, and a leather jacket, and it seems her baby belly has finally popped!

The actress, who is expecting her first child with fiance Jason Sudekis, has reportedly been practicing Pilates throughout her pregnancy, which may explain why she's in such great shape everywhere else!

We wonder when the brunette beauty and her SNL funny man are going to tie the knot?

She could go the Jessica Simpson route and put the baby carriage before marriage, or she could pull a Jennifer Love Hewitt and have a secret ceremony before welcoming her bundle of joy!

When did they morph into such hipsters?!

Anne Hathaway and husband Adam Schulman dressed for the chilly L.A. temperatures to grab brunch at Hugo's in West Hollywood today, and we never noticed this before, but the couple looks a lot like brother and sister!

The Oscar winner might not realize it, but the real life von Trapp family preferred her over Carrie Underwood to star in The Sound of Music Live!.

"[Our family has] had the conversations of who could play this role better and it was Anne Hathaway for example. Here's someone who just won an Oscar for a similar situation. She was able to act and sing [in Les Miserables]," Maria von Trapp's great grandson told ABC News.

That's quite the feather in her cap!

On Thursday Gwen Stefani stopped by the home of bandmate/former beau Tony Kanal, and after that the two went to lunch in West Hollywood. Gwen showed off her growing baby bump in a tight black top and a chic white jacket, and she wore her signature red lipstick. She hasn't stepped out in one questionable outfit since the news of her pregnancy broke ... she always looks amazing!

Kanal and his wife Erin welcomed their second daughter together, Saffron Rose Kiran Kanal, two weeks ago, so it appears as though auntie Gwen got some facetime with the newest member of the No Doubt family.

On Friday afternoon Amanda Bynes went to an outpatient rehab in Thousand Oaks, California with her mom Lynn, and after that the 27-year-old actress went to a nearby medical imaging center.

Amanda kept her look simple in jeans, sneakers and a black sweater, and she accessorized with a Chanel bag, a gold necklace and funky shades. Yesterday X17 snapped Amanda for the first time since she left rehab last week, and she wore a very similar outfit with a sweatshirt that said "Gangsta Love." She hasn't exactly been smiling since we've seen her, but it's good to see that she's letting her sense of humor show with her wardrobe...

"I am doing very well. I'm doing great, it's been five days since I got out of rehab," she told In Touch yesterday. Bynes was discharged and placed in the care and supervision of her mother, and she will stay with her family while still continuing to go to outpatient counseling. Bynes is set to appear in court on January 7 regarding her DUI case, but right now it looks like the starlet and her family are taking things one step at a time.

So which one is it?!

Drew Barrymore kept the guessing game going as to the gender of her unborn child with a pink and blue manicure that she shared on Instagram yesterday.

We're just speculating, but since her ring finger is blue, we're gonna guess she might be having a boy!

"Celebrated a fun new partnership last night between @flowerbeauty and @olivejune. Thanks to @gibsontuttle for hosting us at her lovely salon and @aka_katt for the rad manicure. #nailedit #flowerbeauty," she captioned the snapshot.

Flowerbeauty is the married star's cosmetic line, and Olive and June is an upscale nail salon in Beverly Hills owned by Sarah Gibson Tuttle.

Daughter Olive must be happy to be getting a sibling!

We can't believe she hasn't popped yet ... she's due any day now!

Rachel Zoe and hubby Rodger Berman went to the doctor on Thursday afternoon, and the proud parents were all smiles after their pre-natal checkup. Rachel is reportedly having another son, and the due date was never officially announced, but we're guessing that was one of her last appointments before heading in to the delivery room!

And speaking of that, here's to hoping her second experience with childbirth is a little easier than the first -- the celeb stylist was in labor for 16 hours with son Skyler back in 2011!

This is the best she's ever looked!

Rumer Willis ran errands in Beverly Hills yesterday, and Bruce and Demi's eldest daughter looked sexy in a white dress, leather jacket, and thigh high suede boots. Maybe she's hoping her ex Jayson Blair will get a glimpse at these pictures?

Speaking of exe's, her mother's divorce from Ashton Kutcher was finalized in November, and rumor has it that the Jobs actor secretly proposed to girlfriend Mila Kunis this past summer, so we're wondering if Ru will get a wedding invite? After all, she and her former stepdad are notoriously close!

Looking this hot, it won't be long before Miss Willis snags herself a new man!

Jamie Lynn Spears performed at Eddie's Attic in Decatur, Georgia last night, and Britney's little sister sang some of her own songs, along with a cover of Brit's 2000 hit "Oops! ... I Did It Again."

After "Miss Mississippi," Jamie Lynn started singing "Oops!" and the crowd went wild. The 22-year-old starlet even did some of the signature dance moves, and at the end of the song she said, "It's Jamie, b*tch! My sister has been a big influence on my life, so you gotta throw it back to her, so big round of applause for my sister."