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Olivier Martinez is the named suspect in a battery investigation after things got out of control at LAX ... TMZ has learned.

We're told Olivier, Halle Berry, 6-year-old Nahla and 1-year-old Maceo arrived at the Tom Bradley International Terminal at 1:45 Sunday afternoon. According to LAX Airport Police, the photogs got too close to the family.

An airport employee was also in the crowd, though it's unclear if he too was trying to snap a pic. Cops say Olivier was holding an empty car seat and allegedly shoved it against the employee, causing him to fall backward.

The employee was treated at the scene and taken to a hospital. We're told he complained of abdominal pain. He's filed a battery report.

We just got video of the incident.

Jay Z and Beyonce can be just as embarrassing as your parents ... well, at least on vacation -- because Saturday in Cambodia they had no problem geeking out during a sightseeing tour.

Hova and Bey hit up the Buddhist Temple, Angkor Wat ... and the rapper happily posed pics while flashing the Illuminati Roc-nation symbol.

The first couple of hip hop then hit up the FantaSea attraction in Phuket, Thailand ... and this time Beyonce upped her tourist game by donning a traditional headpiece.

Made in America.

Leonardo DiCaprio ran an experiment on New Year's Day -- can a guy with the beard of a homeless dude get a bunch of chicks to party with him in St. Barts?

You can see the results of Dr. DiCaprio's testing in these photos. Go ahead and click through the gallery -- he gathered a lot of evidence. Very hot evidence.

Leo shuttled a bunch of chicks -- half a dozen or so -- to a private beach only accessible by boat to celebrate 2015. While he smoked a vape pen and took in the scenery ... a staff of 5 served Leo and co. from a full bar on the beach.

Which do you think bothers Bethenny Frankel's soon-to-be ex-husband more -- seeing her amazing body in a tiny bikini ... or that she's rocking it with her new man?

Frankel spent the day of New Year's Eve on the beach in Miami with new beau Michael Cerussi. Bethenny's daughter with estranged hubby Jason Hoppy is reportedly with the couple on the trip.

As if all this wasn't enough to irk Hoppy -- whose divorce from Bethenny is still not quite final -- Frankel tweeted, "NYE day & i'm exactly where i want to be with exactly who I want to be with."

Melanie Griffith just made Aspen a little less fabulous and a lot more animal friendly -- she's vowing to stop wearing real deal furs ... and opt for high quality fakes instead.

Our sources in the celeb winter mecca tell us Griff was introduced to some primo faux coats while shopping in Aspen ... and fell hard for 'em.

We're told she was so blown away by the quality she immediately dropped $7,000 on 6 fakes ... one in every color available. As for Mel's REAL furs -- we're told she plans to donate them to charity.

There's about to be some ballin' orphans in L.A.

It's a tale of two parents -- while Heidi Klum frolicked around topless in St. Barts with her boyfriend Vito Schnabel ... Seal took their kids to Mammoth for a ski vacation.

Heidi's moguls are the best around.

"Modern Family" star Sofia Vergara is engaged to marry one of the hottest guys in town ... so why is she hiding her massive engagement ring?

"True Blood" star Joe Manganiello popped the question over the holiday weekend after just six months of dating (and Sofia only broke up with her other fiancé less than two months before that).

Vergara was spotted at the airport with her ring turned around so nobody could see it.

The ring is rumored to be at least 10 carats ... who's gonna miss it?

Salma Hayek is not one to flaunt her curves -- we rarely see her rocking little black bikinis -- which is why we're showing you these pics of her ... rocking a little black bikini.

Salma was yachting in St. Barts with her husband Francois-Henri Pinault over the holiday weekend.

Mark Wahlberg was caught swimming with a floatie this week in Barbados ... and by that, we mean his wife Rhea Durham's beautiful ass.

Chris Brown may be out of the dog house with Karrueche Tran ... but now he's stuck dragging her new pooch everywhere -- meaning he's officially back to boyfriend duties.

The on-again/off-again couple hit up Nike Town in Beverly Hills on Friday while parading the dog Chris apparently bought her for Christmas -- but did not flash any new rocks.

Remember, on Christmas Karrueche posted what looked like an engagement ring -- but that's highly unlikely since it was on the wrong hand in the Insta pic (which she's now deleted)-- AND she didn't flaunt it for cameras yesterday.

So, the only remaining question -- who picks up the poop?

Step 1 -- Take care of business in L.A. by railing on Sony for caving to the hackers.
Step 2 -- Go to Los Cabos, Mexico with new wife Amal Alamuddin, Rande Gerber and Cindy Crawford.
Step 3 -- Have lunch outside with an unmistakable promotion for your tequila ... so when you get papped it's actually good for business.
Step 4 -- Revel that you're George Clooney and no one else is.

Conrad Murray's locked up and loving it -- he's grown his hair out so long that he's gone next level ... the man bun.

Michael Jackson's doc enjoyed a lunch date Thursday in Miami with his gf Nicole Alvarez.

With the Sony hackers now threatening violence -- James Franco is applying the old theory go big or go home ... when it comes to the security guard tailing him around NYC.

Franco was leaving a restaurant in Manhattan Tuesday night with his new muscle in tow. He was in town to promote "The Interview" and attend the premiere ... which Sony ended up cancelling last night.

Miley Cyrus and Patrick Schwarzenegger took Miami by storm together, but don't get it twisted -- one of them is fueling that party train more than the other... according to their pal Cody Simpson.

The Aussie pop star was shopping at Cotton On in Santa Monica, and talking about his New Year's party plan (he's got a great one) ... which got us on Patrick, Miley, and Cody's raging times at Art Basel last week on South Beach.

We asked who goes harder in the club -- and he backs up what TMZ first told you a couple weeks ago.

You gotta hear Cody gush about Patrick though -- bromance in full bloom.

Kanye West was your typical doting dad when he and Kim Kardashian took North to see Disney on Ice ... that is, until he mysteriously disappeared from the arena.

The West family had front row seats at Staples Center Sunday ... along with Kourtney's kids, Mason and Penelope, Brittny and Lisa Gastineau, and Ciara and her kid.

Yeezy looked mostly happy -- especially with his nachos -- but subtly vanished from his seat later in the show ... with Lisa G. eventually taking his spot.

Kanye also didn't make the cut for Kim's post-show pic, but at least North didn't get cut out of this one.

Drake finally surfaced after the Diddy fight looking no worse for wear -- of course he waited almost 4 days to show his face in public.

Drake went on a shopping trip in Miami Thursday -- the first time we've seen his whole face since Diddy took a shot at him early Monday morning outside LIV Nightclub.

As we first told you ... Drake re-injured his shoulder during the scrap, and actually had to go to the ER. Looks like his mug fared much better.

Respect.