Kristin Cavallari hit the gym in West Hollywood on Tuesday morning, and the former reality star wasn't wearing a stitch of makeup but she still looked amazing. And the fact that her body looks this good after giving birth almost exactly a year ago is quite an accomplishment as well!

And speaking of her figure, yesterday K. Cav re-tweeted one of her followers messages which read, "Respect to @KristinCav for saying she's actually trying to gain weight and not wanting to be so thin! #goodforyou #thingspeopleneedtohear," later adding, "So maybe people should stop judging. U don't know how much I eat or what I weigh so zip it!"

Apparently she got quite a few hateful tweets over those comments, because just a few moments later she wrote, "Off to dinner with my fav ladies @CharCharr @britfield1 @chelseabulte. Hope they don't feed me too much!!! Need to stay SKINNNNY."

We love how candid she is in interviews!

Katy Perry covers the September issue of Elle UK, and the songstress opens up about everything from the Rob Pattinson romance rumors to her relatonship with on-again boyfriend John Mayer.

The "Fireworks" singer made headlines when she was spotted attending a wedding with Twilight hunk and pal R-Patz, but she quickly assured his former flame Kristen Stewart that the hang out was purely platonic.

"I sent her a text message saying: 'I know you've seen all this stuff but you know I would never disrespect you. I'm not that person. I'm just trying to be a friend to him but it is unfortunate that I do have a set of t*ts.'"

As for her relationship with her Grammy-winning beau, the brunette beauty admits she was forced to look inside herself when he grew distant.

"He pulled away. That was a big hello for me. I realized I could lose the person I loved and I had to deal with some things, issues I think a lot of women have. You can be strong in one aspect of your life but submissive in another."

So what about those friendship fallout rumors with Rihanna?

"I love her and every time I see her, I'm reminded of the light that she has. There's a lot of dark in this business. I know a lot of people out there with the most detrimental entourages - they are the root of their demise. It's really unfortunate but you can't save these people. My days of celebrity saving are over!"

We can't believe she didn't dish the dirt on ex-husband Russell Brand during this sit-down!

She's normally so well dressed!

Nikki Reed hit her local Barnes & Noble bookstore yesterday in Los Angeles, and the Twilight hottie wasn't looking her best on the errand run!

The actress donned faded ripped jeans and a crop top over a grey tank, and while we don't mind her denim choice, we think she should have passed on the printed baby tee as part of her ensemble.

It's rare for the brunette beauty to suffer a fashion fail, considering she's so stylish!

The married star released her own capsule jewelry collection for Glamhouse last year, and followed that up with a five piece collection for 7 For All Mankind this past May. Clearly the girl knows a thing or two about being on trend, so she must have been having an "off" day!

It's ok Nikki, it happens to the best of us!

Who knew Bella Swan was such a bitter babe?!

On Monday afternoon Kristen Stewart went off on one of our photographers while taking a lunch break from her new flick Camp X-Ray.

When asked why she is angry, K. Stew mouthed off, "Because you're a piece of s**t. You don't deserve to breathe the same air I do." All this coming from the girl who famously cheated on the uber dreamy Rob Pattinson with a married man? Hmmm...

The Twilight starlet then called our lensman a "f**k face" and looked like she was going to explode when asked about her relationship with Rob.

Justin Timberlake has dropped the music video for his latest single "Take Back the Night," and we love his dance moves, but we're not so sure about his outfit ... specifically the shirt. Sorry JT!

Earlier this month Timberlake received some bad press because he failed to realized that Take Back the Night was a name trademarked by a sexual assault awareness foundation.

“Upon the release of my new single 'Take Back The Night,' I was made aware of an organization of the same name called The Take Back The Night Foundation," Timberlake said in a statement at the time. "I wanted to take this opportunity to let all know that neither my song nor its lyrics have any association with the organization. As I’ve learned more about The Take Back The Night Foundation, I’m moved by its efforts to stop violence against women, create safe communities and encourage respectful relationships for women — something we all should rally around. It is my hope that this coincidence will bring more awareness to this cause.”

Fashion Star has been cancelled, NBC Entertainment President Bob Greenblatt confirmed at the Television Critics Association press tour today.

The show premiered at the beginning of 2012, and even with the star power from mentors Jessica Simpson and Nicole Richie, the series seemed to start its downward spiral when original host and executive producer Elle Macpherson stepped down at the end of the first season. British style personality Louise Roe (who?) replaced Macpherson for season two, but thanks to low ratings the show eventually got bumped to the Friday schedule. The series finale only had 2.5 million viewers.

Contestants on the show were judged by buyers from Macy’s, Saks Fifth Avenue and H&M, and each week they tried to get their collections picked up by the retailers. The winner of the competition received $6 million, but by season two the prize money was cut in half and the format became even more confusing.

Go Greased Lightning! While automobile hounds like Justin Bieber and Scott Disick like to tear up Los Angeles streets in banana-yellow and leopard-print sports, Hollywood veteran John Travolta loves to tool around town in his vintage 1970 Mercedes-Benz 280SL. At least there is one thing he keeps classy! On Monday, the Pulp Fiction actor was snapped cruising through Beverly Hills looking like a cool rider in his vintage ride. Once a Danny Zuko, always a Danny Zuko!

Clearly Travolta must love this model of car because last year the actor had a different 1970 Mercedes-Benz 280SL stolen from him. In January 2012, the Saturday Night Fever star's classic Mercedes, which was believed to be worth around $100,000, was stolen off the street while the actor was visiting a Jaguar dealership in Santa Monica, Calif. The vehicle was later recovered in a chop chop, and two men were later arrested and sent to jail for the theft of the car.

The Get Shorty actor, who hasn't done a film since the 2012 clunker, Savages, next stars with Robert DeNiro in the action thriller Killing Season. The Oscar-nominated actor is also slated to take on the role of legendary crime boss John Gotti in the biopic Gotti: In the Shadow of My Father, due out in 2014.

Glamour

Jennifer Aniston covers Glamour's September 2013 issue, and the 44-year-old actress is interviewed by her We're The Millers co-star Jason Sudeikis. Aniston chats about her relationship with Justin Theroux and she even opened up about needing therapy after her split from Brad Pitt.

“I know Justin, for instance, has extremely amazing paternal instincts," Aniston gushed. "Because [growing up] he had to sort of become the parent. I think when you have to become the parent when you’re a younger person, you learn those instincts." Does this mean that she's thinking of becoming a mom sometime in the near future?! I mean, we have to ask...

When asked what advice she'd have given herself in her thirties, when she was in the middle of a very public divorce from Pitt, Aniston said:

"Thirties. Go to therapy. Clean up all of the sh*t. Clean up all of the toxins and the noise. Understand who you are. Educate yourself on the self. You can undo a lot of things. If you're not happy, you can become happy. Happiness is a choice. That's the thing I really feel. Like with friends who refuse to get happy, who refuse to rise above the discomfort of where they're at ... You actually deserve to have a family. And once you meet yourself, and truly love yourself, then you attract that. And look—I mean, [Jason and I] found these two, beautiful, loving, open people.”

Aniston also defended Sudeikis' fiancee Olivia Wilde after the starlet's headline-making interview in 2012 about her sex life, telling her co-star:

"I was so pissed [about the media backlash]. Because I related to it — I related to that f**king feeling of people just wanting to rip down the powerful, beautiful woman who [speaks her mind]. Stuff like that’s so sh*tty. I don’t like injustice. We’re living in a time where, whether it’s the Internet or tabloids, being sh*tty has become a sport. We’re just grown-up bullies. We literally could not need to have our hearts more open than in these times.”