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Kourtney Kardashian's dress had everyone doing a double take Monday night as she hit the club scene in Cannes with Younes Bendjima because her outfit was a lot to stomach.

Kourtney and Younes hit up Gotha club with her sis, Kendall. They're all out there for the film festival, but the real show was Kourt's painted on dress which made it seem like she was half naked ... not that anyone was gawking, we're sure.

Kourtney has been looking unbelievably hot these days, so not like she needs any assistance.

Michelle Obama bared enough for pretty much everyone in Tuscany to notice.

The former First Lady was out and about in a super revealing top -- if shoulders are your thing.

Barack wore a button-down shirt casually with sleeves rolled up as he walked next to Michelle.

The Obamas are splitting their time chilling and writing memoirs ... for which they're getting paid a total of around $65 million.

Kourtney Kardashian and Kendall Jenner are cut from the same cloth ... when it comes to their asses on yachts, that is.

Kourtney and Kendall took a break from the hustle and bustle of the Cannes Film Festival and boarded a yacht in the resort town of Antibes ... which is between Cannes and Nice. Not that geography matters worth a crap ... you're here to see what they're what they're wearing.

Aside from swimwear ... Kourtney showed off her new man, Younes Bendjima -- and had some jet ski time with him and Kendall.

Kanye West is back in his hood, strolling through Calabasas after seeking musical inspiration on the highest mountaintop in Wyoming.

Kanye breezed into his studio Saturday with a few buds, presumably to work on new music. TMZ broke the story ... Kanye's working on a new album and has gone to a Wyoming resort several times over the last month for some peace and quiet.

Bella Hadid's used to the high life, but even she had to make a few minor adjustments while cruising around on a baller yacht in France.

The supermodel got some sun and enjoyed a smoke Saturday in a smokin' hot bikini. Bella's in the country for the Cannes Film Festival, but there's always time to hang out with friends on a luxury double-decker yacht. All that's missing are the mimosas.

Pippa Middleton's wedding is hours away, and by the looks of it ... she'll be harder to get to this weekend than Queen Elizabeth.

Security at the Middleton estate is beefed up big time for Saturday's wedding at St. Mark's Church in Berkshire. Surveillance vans, security cameras, and scores of police officers are on the scene.

Although Pippa's wedding to James Matthews -- a millionaire hedge fund manager -- isn't expected to be the worldwide spectacle as her sister's in 2011, it's still getting the royal treatment.

And let's not forget why -- Pippas butt stole the show at Will and Kate's wedding. Ahh, good times!

Two rarities from Ryan Gosling and Eva Mendes -- they went out in public together AND they did with their adorable kids, including baby Amada.

The couple got in some quality play time with their daughters, Esmeralda and Amada.

Ryan and Eva kept the births of both girls under wraps -- and we're pretty sure this is a first look at Amada, who just turned 1. Eva's pregnancy with her was undercover, no one knew she was pregnant until about 2 weeks before birth.

Amada's genes, Mom's AND Dad's, are showing ... super adorable!

Angelina Jolie and Brad Pitt's kids are growing like weeds -- which is why these shots of them on a shopping trip should make you feel pretty old.

Angie hit up Fred Segal Thursday afternoon in WeHo with 12-year-old Zahara by her side. The strapping young man carrying the shopping bags is, believe it or not, 13-year-old Pax.

Dude was rocking a Playboy hoodie, with matching kicks. Looks like the sibs put a hurting on Mom's credit card ... though we think she can handle it.

If Angelina's not careful ... someone's gonna offer these kids modeling gigs.

Karrueche Tran rang in her 29th birthday at Cipriani's Wednesday night with a slew of guests that included boyfriend/Migos rapper Quavo.

They arrived and left separately, but the secret -- if it ever was one -- is way out.

They've been on the DL mostly because Karrueche has issues. She's going to court next week, hoping to get a permanent restraining order against ex-BF Chris Brown, claiming he targeted death threats her way.

Kim, Khloe and Kourtney Kardashian had their Cinco de Mayo celebration at a Mexican restaurant that had just reopened after handling a roach problem -- and now the joint's closed again for renovations.

Casa Vega hosted the sisters, Kris Jenner and their pal Jonathan Cheban on May 5 -- 1 day after it reopened following a health department shutdown.

County officials temporarily closed the Sherman Oaks spot on May 2 after reportedly getting a tip about las cucarachas. Casa Vega said 2 of 'em were found in a storage room, but they squashed the issue quickly.

Now Casa Vega's closed again, and this time for a full kitchen remodel. The restaurant says it's adding completely new equipment. Employees were outside Wednesday scrubbing down all the gear.

Turns out the Yellow Power Ranger, Becky G, is way more dangerous in street clothes ... when her curves are on full display.

The "Power Rangers" star was at Upfronts in NYC, rocking a skintight dress that's likely to have you suddenly jonesin' for an orange Fanta.

Becky, who played Trini the Yellow Ranger in the new reboot flick, makes a strong case for a wardrobe change if they decide to make a sequel. Or even better ... a solo spin-off movie.

We're just sayin'!

#HappyHumpDay!

Emily Ratajkowski is in the South of France with a ton of other celebs this week for the Cannes Film Festival, but she's already stealing the show.

Emily took a dip Wednesday in a bikini that looked like it crept up onto her body and wrapped itself around her ... because what bikini wouldn't want to do that?

Taylor Swift is out of hiding, and all it took to draw her out in public was a trip to see her mom.

Taylor hopped a PJ to Nashville this weekend for Mother's Day. She arrived on Saturday, and stayed through Sunday. Looks like it was a pretty casual family weekend ... based on her wardrobe.

It's the first time we've seen T-Swift out since she performed at a Super Bowl weekend concert. It's unclear why she's been underground for 3 months.

She caught a lot of flak for her feud with Kanye & Kim last year -- and might be letting that die down. Fans hope she's just off working on a new album.

Katy Perry has officially lost her appetite for cherry pie ... she literally can't stomach another bite.

Katy was out pumping up her new single, "Bon Appetite" this weekend at the Wango Tango concert in Carson, CA -- and noshed on a big ole cherry pie. It's been her big promo gag lately for the song.

Unfortunately, Katy has her limits when it comes to snacking on pie ... and this time she spit it out with a very grossed out look.

Must not have been her recipe, but that face is priceless.

Now we know Priyanka Chopra is the super affectionate type when she's around her BFF, Adriana Lima, on the beach ... and ya can't blame her!

The gorgeous "Quantico" star couldn't keep her hands off the Brazilian supermodel during some serious gal paling Friday on Miami's South Beach. Adriana flaunted her tiny black string bikini, while Priyanka covered up a little more.

Still, she couldn't resist getting all over Adriana while they frolicked -- 'cause that's what smoking hot girlfriends in swimwear do.

Ariel Winter and her boyfriend pulled up their house-hunting pants -- at least he did -- and hit up several pads around L.A. this week.

Ariel and 29-year-old actor Levi Meaden checked out a place in Sherman Oaks together. The 5 bed, 6 bath, 4,668 sq. ft home comes with a pool, spa, built-in barbecue and outdoor fireplace. Translation: great party spot ... for a cool $2.185 million.

Sources close to the couple tell us they're just shopping for now, and haven't put in a bid on the pad.

Ariel bought a $1.5 million house in the same area last September, and she recently revealed Levi -- who stars on SyFy's "Aftermath" -- moved in with her. Sounds like they're ready to upgrade.