Don't mess with RiRi!

During a sitdown interview with Esquire UK, the pop star became immediately bothered when the reporter brought up her recent professional reunion with Chris Brown, her ex-boyfriend who infamously abused her in 2009 during their relationship.

"Some people felt it sent the wrong message ... You'd gone back to someone who put you in the hospital," the journalist said, which struck an irritated chord with the Where Have You Been singer.

"Oh really? Did I?" Rihanna answered back. "Did I? Did I? Did I? ... Okay. In a completely professional environment. And on a complete professional note. I mean, if I went back to him [as a girlfriend], then that’s a whole different discussion ... I think a lot of people jumped to an assumption that was incorrect and they ended up looking stupid."

Instead of changing subjects to avoid any verbal altercations, the reporter pressed on with questions pertaining to the thin line between her professional and personal life. That's when Rihanna decided to fight back.

"This is turning into a tacky interview," Rihanna said. "What do you really want to talk about? I’m not here to [talk] about messy s**t ... It upsets me that you keep asking the same kind of questions about stuff that’s trivial. What’s there to talk about? Are all your questions like that?"

Yes, if you didn't know, RiRi IS capable of such a fierce response! Looks like this journalist might have learned his lesson on proper interview etiquette!

It looks like someone is ready to pop soon!

Kristin Cavallari showed us her best maternity style on the way to a doctor's appointment in Toluca Lake yesterday, cloaking her baby bump in a red belted dress paired with simple black sandals. She might not be on TV anymore, but she's still dressing like a star!

Not only that, but it seems like the 25-year-old has kept her baby weight gain to a minimum! Reportedly due in August, the blonde beauty is already craving all the "off limit" mommy foods she has been deprived of, tweeting, "Counting down the days until I can have sushi."

It might not feel like it to K-Cav, but we feel like her pregnancy has flown by!

Not only does the mother of three seem to be dropping her baby weight, but she also seems to be in a great mood! Who knew that was possible?

Jennifer Garner was snapped running errands in Los Angeles this morning, and the 40-year-old actress just happened to take a phone call when she bumped into our photographers. We highly doubt it's hubby Ben Affleck on the line, but we're happy to see her smiling and strutting around with more confidence than usual!

Sheryl Crow recently revealed she was diagnosed with a brain tumor after a routing check-up. "I worried about my memory so much that I went and got an MRI. And I found out I have a brain tumor," the singer explained to the Las Vegas Review Journal.

The good news is that the tumor is a meningioma, which is benign and doesn't require surgery. The 50-year-old Grammy winner initially became concerned for her health after forgetting some of the words to her song "Soak Up the Sun" during a Florida concert.

This isn't Crow's first health scare, either. The mom-of-two battled breast cancer in 2006, but was able to beat the disease and make a full recovery.

One thing's for sure - she's a fighter!

Much maligned Teen Mom star Amber Portwood has been sentenced to five years in prison after failing to complete her drug rehab program.

According to multiple reports, a judge reimposed her five year sentence on Tuesday when the 22-year-old reality star decided to opt for prison after having quit after three months into her rehab assignment.

Portwood was sentenced to three years in prison for possessing prescription drugs without a prescription and an additional two years for violating probation. Instead of her sentence, she struck a plea agreement which allowed her to skip jail upon completion.

Portwood can still avoid serving the entire five years of her sentence depending on "good behavior," where she can reduce her time by up to four years, or one-third of a prisoner's sentence, according to Indiana's prison policy.

There has been no word on when her sentence will begin. Her 3-year-old daughter Leah is in the custody of Gary Shirley, the father.

David Hasselhoff and girlfriend Hayley Roberts were snapped going for a stroll in Beverly Hills yesterday, and the May/December couple coordinated with his and hers pastel spring outfits -- and matching spray tans!

While Hayley's skin tone might be a tad on the dark side (Tanning Mom would be proud!), the 32-year-old aspiring model is definitely a catch for the man who once made out with a hamburger. David, who turns 60 this July, met Hayley back in 2011 when she asked for his autograph after auditions for Britain's Got Talent. Think it's true love?

Jenny McCarthy says her 10-year-old autistic son Evan misses her ex Jim Carrey ... and asks about him "almost weekly."

During a recent interview with Howard Stern, the Love in the Wild host told the shock jock:

"I've tried to ask [Jim] numerous times [to see Evan], because my son still asks. I haven't [reached out directly] . . . I think that sometimes people need to take a real break from each other. But I still love him. I think you can love people from a distance and respect him. But as a mother, you just hope when you have a relationship with someone, it has nothing to do with the child when you break up."

The former Singled Out host adds: "I tell [Evan] that someday you'll cross paths, meet again. . . [but] it's hard. He's been in therapy. It's a process, he's working on it."

Carey and McCarthy dated for five years before calling it quits in 2010.

This isn't our favorite in-flight outfit, but we're going to give Fergalicious a pass!

Fergie touched down at JFK airport yesterday, and while some people like to grab attention with their travel style (Kim Kardashian!) the Black Eyed Peas front woman chose a more incognito look in an all black ensemble, accessorized with a Chanel scarf and a fedora.

We know that the 37-year-old isn't expecting yet, since she showed off her fab abs in Mexico the other week, but we're wondering when she and hubby Josh Duhamel are going to add to their family?!

The adorable couple have been married since 2009, but both their careers have kept them so busy in recent years that starting a family wasn't in the cards. Now that the blonde beauty is on a break from her band, we think a baby announcement is imminent!