Guess who left the reality show circuit but isn't quite ready to leave the spotlight just yet?! That's right, former Real Housewives of Atlanta star Kim Zolciak may have stormed off the show with finger wags and declarations of being "done" with the whole thing, but she's not quite ready to have you leave her alone. The 34-year-old mom of four shared a photo of herself looking hot in a red bikini type thing.

Why should you be impressed? Well, Kim has two babies under 2 and most recently gave birth just back in August.

If there was ever any doubt that Beyonce is a superhuman force of nature who's fiercely dedicated to both motherhood and her white-hot career as a performing artist, her recent interview with Oprah Winfrey reminds us that she doesn't get her fame from luck -- she works her ass off for it. Literally, in the case of dealing with her postpartum body.

I remember reading once that she'd gained a nontrivial amount of weight during her pregnancy with Blue Ivy, but I had no idea she'd gained quite as much as she did. And the crazy part is, she had to get back in fighting form right away after giving birth, because she had to hit the stage just three months later.

Thank you, thank you, thank you, Nicole Sullivan! The actress who plays a couples' therapist on Cougar Town recently talked openly about her postpartum weight loss struggle after the birth of her first son.

It’s hard for most new moms to shed the pregnancy poundage, but in Hollywood, it’s especially difficult because of the conformity to thinness. Sullivan told Us Weekly, "There just are not a lot of overweight people in Hollywood. I felt like the jerk who couldn't figure it out."

There's a new rumor that Khloe Kardashian is pregnant with Lamar Odom's baby and planning to do a pregnancy reality TV show with her sister Kim -- and I just don't know what to think. First of all, Khloe pregnant? I'd be so happy for her if it were true. Supposedly an insider from E! tipped off MediaTakeOut.com yesterday and claims the sisters will make 50 percent more on the preggers show than they do on Keeping Up. But ... I'm going to wait until we hear from the Kardashians themselves before I pull out my celebration tambourine.

Until then, let's talk about this idea of a televised pregnancy. Is that really such a good idea? Because pregnancy is just so ... awkward.

Guess you can always leave it to Kourtney Kardashian to say something that sounds like an ideology we can actually get behind ... and then totally wrecking it by going superficial Hollywood on us. Illustrated example: Kim's big sis, who just had her own second kiddo, Penelope, six months ago, was talking to Us about feeling "sexier than ever" since losing the baby weight. After admitting that shedding the pounds the second time around was harder than the first go after 3-year-old Mason, she says baby daddy Scott Disick likes her body "any way." Aaaw -- wait, hold it right there. Because then she goes on to say, "But I think his favorite is when I'm skinnier." UGH.

Favorite shmavorite! I know these two didn't take any kind of official vows, but they seem pretty serious about their relationship, and a long-term partner shouldn't be "playing" favorites when it comes to something as sensitive and changeable as body weight.

Not to be outdone by Kim Kardashian's pregnancy news, Jessica Simpson tweeted a photo of her pregnant belly this weekend, and dear god in heaven, EXACTLY HOW PREGNANT IS SHE, ANYWAY??? Didn't she just announce her pregnancy a month ago? And she was still losing the Maxwell baby weight right up to that point, so how far along could she be? Four months?

Wow. Some women carry small. Some women carry big. And some women carry Jessica Simpson Huge. But Jessica's all right with that. "Bumpin' and proud!" she tweeted.

Well, I guess we shoulda seen this one coming. Now that Jessica Simpson has made her second pregnancy official with a way-too-adorable Christmas announcement on Twitter, Weight Watchers is chiming in. They are reportedly thrilled for her (mm hmm), but a rep notes that Jess will "not be following the program during the pregnancy while her weight and well-being are monitored by her obstetrician, as is recommended for any woman during pregnancy. After she gives birth, Jessica and her doctor will decide when she may resume following the Weight Watchers program." Oookay ...

Don't get me wrong -- I'm not saying Jess should be sweating bullets over WW Points values of food all day long while carrying Baby #2, but to completely shelf the healthy habits that purportedly helped her shed 50+ pounds? Terrible mistake! It would be for any woman.

Looking back on 2012, there's no question that there was plenty of extreme celeb behavior -- and weight losses to boot. Just look at Anne Hathaway and Matthew McConaughey, who managed to prove that dropping major pounds -- even in the name of art -- isn't always something to be lauded on the cover of a celebrity weekly ...

Other times, it's totally aspirational! And thankfully, over the past year, plenty of stars have earned props by slimming down for themselves in a healthy way -- by working out and eating right. Here, six of the most inspiring celebrity fitness transformations of 2012. Check 'em out ...