Beyonce Knowles knows a thing or two about weight. The actress-singer has gained and lost and gained an lost again and again over the years. Beyonce spoke about her weight, as well as the influence she has on young girls, in her April cover interview with Vogue magazine.

Indeed, Knowles has been known to easily transform her body shape for various roles, famously losing twenty pounds for her role in “Dreamgirls,” then gaining an additional 20 for “Cadillac Records.”

“It’s easy for me to gain weight,” she says. “I’m not a naturally stick-thin girl. I’m not heavy but Im not skinny either.”

Coupled with her amazing talent, it’s easy to see why the star’s self-confidence and poise have made her a role model to young girls everywhere, including Sasha and Malia Obama.

“The amount of influence I have on these young girls is scary sometimes. But I also understand how lucky I am to have that.” [Source]

Pop songwriter and ex-Danity Kane member Aubrey O’Day is featured on the cover of Playboy’s March issue. O’Day is so proud of her “work” that she’s already making plans to hit the magazine’s pages again at some point in the future. Next time however, she plans to be even more naked!

“I absolutely want to do it again, any day. I’ve been asked to actually,” O’Day told Tarts last week. “I only took a little bit off this time so I’ll be back.”

But it seems as though the former “Danity Kane” diva will have to be careful stepping out in public as life has been a little scarier since she flashed her flesh for the men’s mag.

“I get sent a lot of creepy pictures like of guys licking the pages,” she admitted. “It’s slightly weird.” [Source]

Kelly Clarkson is so real it hurts. The super-star pop songstress and American Idol winner gave an interview with Blender magazine recently in which she spoke candidly about a number of issues.

On a penchant for nudity: “I’m the kinda person who just doesn’t like clothes.”

On peeing in the shower: “Anybody who says they don’t is lying.”

On honesty: “I do not lie. Ever. I will tell my girlfriend if she looks fat in her jeans… When you don’t make yourself clear or heard, that’s where trouble starts. And that’s something I learned as a child. No one is going to know what you feel unless you tell them.” [Source]

TMI? Maybe. But we love Kelly so we’re always happy to hear her talk.

“Scrubs” star Sarah Chalke (aka Becky 2.0) recently graced the cover of Fitness magazine looking slim and fit in a sporty two-piece bathing suit. In her interview, she shared some of her diet secrets and admitted a few guilty indulgences:

FITNESS: Are you the kind of celebrity who nibbles two celery sticks and calls it dinner?
Sarah Chalke: No! I was raised to eat good-for-you foods, but we often had pie or ice cream for dessert. So that’s how I eat now — I love really, really healthy stuff followed by a really, really naughty dessert, like pumpkin pie. Dark chocolate is my favorite. I sometimes make hot-chocolate soup, which is basically a thick bar of chocolate melted and topped with whipped cream.

FITNESS: What foods are always in your refrigerator?
Sarah Chalke: Eggs, apples, peanut butter, and fresh berries. In my drawer there’s dark chocolate, and I have an entire cabinet of different kinds of teas.

FITNESS: Would you eat differently if you weren’t in Hollywood?
Sarah Chalke: I would like to say no, but I think the answer is probably yes. There are definitely pressures in this business to look a certain way. I believe you have to try to find a happy medium and put your health first. I don’t even own a scale, actually. [Source]

It’s always nice to hear a star say they eat like us normal folk, even if they’re lying. And Chalke definitely looks fantastic right now. Maybe dark chocolate soup is the key to happiness.

Katie Holmes doesn’t cook! That explains everything. The scary-skinny Scientologist, who is gracing the cover of Glamour magazine this month, admits that she doesn’t really dig on her kitchen. Katie does admit, however, that sometimes she’ll indulge in one of Tom Cruise’s signature dishes.

“I don’t really cook that much - eventually I will,” said Katie. “I do make cupcakes. And [Tom] makes his pasta carbonara for me…He knows exactly how to do it: a pinch of this, a pinch of that. He has a recipe, but he also kind of [improvises] by himself. You have to do the egg at a certain time. He did it once when we were camping.”

With her prominent collar bones and slim figure Katie certainly doesn’t look like she enjoys the creamy dish too often. [Source]

Ain’t that the truth. If Katie eats even one spoonful of the super rich dish, she’s liable to pop right out of her size negative-zero skinny jeans.

How much skinny can one magazine cover take before it explodes right off the shelves? Apparently, Glamour might just find out. According to sources, Lindsay Lohan is steaming mad at Katie Holmes for snatching the April Glamour cover right out of her hands.

…the leggings entrepreneur/actress was expected to appear on the cover of the April edition of Glamour magazine, but instead the coveted cover went to Holmes.

“(Lohan) did this big Madonna-themed photo shoot and she was totally under the impression it would be the cover,” says the source. “Her Marilyn Monroe shoot for New York Magazine seemed to make her relevant when she did it, she thought the same would happen this time. Only she wasn’t on the cover, Katie was, and she’s mad at her now.”

But according to yet another source, all those Big Macs and cancer sticks must be going to Lindsay’s brain—getting on the cover was never a part of her deal with Glamour.

“If that was Lindsay’s impression, it was a mistake. She was always going to be inside the magazine.” [Source]

Holmes doesn’t seem to give a care or if she does then she’s keeping mum. Poor Lindsay. Let’s hope this cover wasn’t the only thing she’d been looking forward to.

Well, it’s finally happened. After years of talking about how badly she wants babies and how equally desperate she is to maintain her post-Friends career, Jennifer Aniston is ready to take the plunge. Reports in Life & Style magazine have the “Marley and Me” star visiting celebrity baby doc, Mary C. Kerr.

According to Life & Style magazine, the “glowing” former Friends actress - who recently celebrated her 40th birthday - has been seeing fertility doctor to the stars Dr. Mary C. Kerr, and Mayer is “over the moon” he is to become a dad.

“She’s been seeing Dr. Kerr,” an insider tells he mag. “She’s seen her in the past, when she and Brad Pitt were together and there was talk of them trying to have a baby.”

“I think Jen got the same advice that most Hollywood women on the skinny side get,” adds the insider. “Beef up, relax and give it your best.”‘

Aniston has previously spoken of her desire to have children. “I want to have children. That’s my plan,” she said. [Source]

I guess weight gain isn’t such a big thing to Aniston these days, despite her protests to the contrary earlier in the week.

Being a mommy seems to agree with Jessica Alba. In a February Elle interview, Jessica’s head appears firmly planted on her shoulders. Not only does she talk candidly about how difficult it was for her to lose weight after the birth of her baby, Honor Marie, but she also discusses the rank nature of the Hollywood thin machine:

ELLE: You don’t think being beautiful and thin has helped you?

JA: You have to be the best of whatever you are, but successful, cool actresses come in all shapes and sizes.

ELLE: True, but it’s hard to name an A-lister who’s not sample-size.

JA: It’s interesting that A-list also means commercially viable, versus being Frances McDormand, who’s amazing and A-list to me but doesn’t sell as many tickets.

She also discusses her post-partum workout regimen and a rather unorthodox solution to pesky belly flab.

“I wore a girdle. Eight weeks after my girlfriend had her baby, you could see her six-pack. She told me to put an elastic band around my waist—any kind of band or girdle works. She was like, ‘I slept in it.’ I didn’t recover as fast as she did. I don’t have a six pack—that’s just not my body at all.” [Source]