She's back!

After unveiling her fabulous post-baby body while vacationing in Mexico with friends earlier in the week, Molly Sims turned up her maternal instincts in L.A. on Thursday when she and her son Brooks were out and about.

The former Sports Illustrated model was pretty casual as she went without make-up while running some light errands with her adorable baby boy before meeting up with fellow celeb mommy Hilary Duff and her son Luca for a kiddie play date.

How cute is that?!

She's still hitting the road!

Jenna Dewan-Tatum isn't taking her pregnancy laying down as she was out and about in Los Angeles on Thursday.

The 32-year-old actress, who was fresh off a date night with hubby Channing Tatum, squeezed in a workout at Movement Yoga Studio before stopping at Bristol Farms for a little grocery shopping. Her baby bump won't slow her down!

She's one hot mama!

On Thursday, Nicole Richie looked very fashion forward while visiting the set of Extra at The Grove in Los Angeles.

The 31-year-old fashion designer could have passed for a runway model as she rocked a cute black top with a pair of printed pants. Glad to see that motherhood hasn't dulled her sense of style!

John Mayer has never been one to hold his tongue but this time he's taking a more self critical approach.

During an interview with CBS Sunday Morning, Mayer admitted that he didn't necessarily handle himself properly in regards to his high profile relationships in the past.

“I was just a jerk,” the 35-year-old singer told host Anthony Mason. "It’s very liberating when you finally realize it's impossible to make everyone like you. I wanted everybody to like me. I thought I was one shuck and jive away in every direction."

Mayer, who's been linked to Jessica Simpson, Taylor Swift and currently Katy Perry, expressed regrets for his prior actions and admits that it was harder to deal with than the loss of his singing voice. He's since recovered from his persistent throat granuloma in time to promote his latest album Born and Raised this summer.

Mayer's full interview can be seen on CBS this Sunday.

Looks like Kendall and Kylie Jenner have been taking fashion cues from their big sisters! Heck, they may have even raided Kim's closet before heading to New York for a handful of promotional appearances...

The sisters were snapped returning to their N.Y.C. hotel after appearing on The View on Thursday, where their mom Kris served as a guest host. Shortly after that, they changed into another set of outfits and we snapped them heading to the Time Warner Center!

On Thursday morning Ben Affleck and wifey Jennifer Garner stopped by Brentwood Country Mart for a cup of coffee (well, for him anyway) after they dropped their little girls off at school.

In between awards shows this winter we've snapped Ben spending lots of time with his three children, but come this spring he's going to be spending a lot of time out of the house working on new film projects.

He'll begin production on the untitled Whitey Bulger movie with pal Matt Damon in Boston, and last month he announced that he was backing out of Focus with Kristen Stewart, but he confirmed that he will be directing and starring in Live By Night, which is also set in Boston. The flick, which is based on Dennis Lehane's novel of the same name, is a Prohibition-era tale of a policeman’s son who "takes to life as a liquor outlaw, which eventually leads him to Florida, Cuba, and the depths of crime." Sounds fascinating!

Oh, Amanda Bynes ... be careful what you Tweet!

The 26-year-old actress sent out the above Tweet on Wednesday putting the words "Ugly face" next to a photo of Jay-Z.

She has since deleted the message. Although there's a possibility the account was hacked, the blonde starlet has had a history of posting awkward Tweets.

Makes us wonder.

Talk about one big happy - extended - family!

Jennifer Lopez and current beau Casper Smart got together with her ex-husband Marc Anthony to celebrate his son Christian's 12th birthday, and even though they are no longer a couple, the former Hollywood power pair seem intent on staying in each other's lives!

Anthony was joined by on-again girlfriend Shannon de Lima, but Christian's biological mother Dayanara Torres didn't make it to the soiree. Also in attendance were Jennifer and Marc's twins Max and Emme, plus their half brother Ryan, 9.

Although the Latino singer was said to be none too pleased about J.Lo's relationship with the back up dancer following their July 2011 separation, it would appear that new love heals all wounds because everyone was all smiles for the big day!