Breakups

Though he's reportedly dating Jennifer Lawrence and she's reportedly dating "Glee" producer Brad Falchuk ... formerly coupled duo Chris Martin and Gwyneth Paltrow were spotted together Saturday.

The two were seen headed to breakfast in the Hamptons with their two children, Apples and Moses.

Britney Spears' ex-boyfriend David Lucado is desperate to have at least one last convo with her -- but Brit's entire team, led by big daddy Jamie Spears, is blocking him from contacting her ... TMZ has learned.

David is telling friends he and Britney were not "100% together" a few weeks ago when he was videotaped dancing and making out with a girl -- and he wants to explain himself, but he's running into a brick wall in the form of Team Brit.

Britney's camp tells us David won't be getting through because he's persona non grata at her show in Las Vegas, at her home in Thousand Oaks, CA ... and his phone number's been blocked.

Britney Spears just dumped boyfriend David Lucado for breaking three simple rules: 1) Don’t cheat on your millionaire girlfriend 2) Don’t get videotaped doing it and 3) Don’t let her dad find out.

When you make K-Fed look good, you know you screwed up.

The incriminating video showing Britney Spears' now ex-boyfriend cheating on her is now owned by none other than Britney's dad ... TMZ has learned.

TMZ broke the story ... a video has surfaced of David Lucado dancing with and kissing a woman a couple of weeks ago. A rep for Jamie Spears tells TMZ ... when Jamie got wind of the video he contacted the agency that was selling it and swiftly coughed up a SUBSTANTIAL amount of money to secure it.

We're told Jamie -- who has been Britney's conservator for over 6 years -- then called Britney and told her he had something to show her ... and it was important. When Brit saw the evidence that was all she needed ... she immediately declared the relationship over.

Jamie's rep tells us he took the action to protect his daughter from David and from the embarrassment of the video going public.

Jamie's rep says the video is under lock and key and will never be seen again.

The wild card -- we don't know if the "other woman" who secretly shot the video made other copies, but Jamie's rep tells TMZ in no uncertain terms ... if anybody posts or publishes the video he will sue them for copyright infringement.

Britney posted an Instagram video Thursday night ... saying she was having a "really, really sh***y" day."

Britney Spears just dumped her boyfriend of 18 months ... after finding out there's a video of him cheating on her that's being shopped around Hollywood.

We're told David Lucado is seen in the video making out with a woman and dancing with her. It looks like they're in someone's living room. We're told the video was shot in early August.

When we called Lucado ... a rep told us, "David is very, very in love with Britney. This is unfortunate and he hopes that it all works out."

Well, it didn't. We called Britney's camp for comment, and we were told her father Jamie wanted to say something about it, but wanted to tell Britney first. It appears as soon he told her ... she broke up with David.

She just tweeted, "Ahhhh the single life!"

Mariah Carey still won't talk about her impending divorce from hubby Nick Cannon, but she put her kids on full display on Twitter ... to show she's still a loving mother.

Carey posted a trio of photos on her seldom-used Twitter page, writing, "It's a small small world!"

Neil Young is bailing on his wife after over 35 years of marriage, but he's not turning his back on their son ... an adult with special needs.

The Rock and Roll Hall of Famer filed to divorce singer-songwriter Pegi Young, citing irreconcilable differences. They got hitched back in 1978, and separated this past April.

In his divorce docs, Young makes no mention of paying Pegi alimony ... but says they've agreed that both will continue to support their adult son, Ben, who has cerebral palsy. (Neil actually has two adult kids with CP ... the other is from a previous relationship.)

It seems Nick Cannon is making his break-up with Mariah Carey official ... 'cause he appeared on "America's Got Talent" Tuesday night sans wedding ring.

Cannon was hosting a live episode of the show and his lack of wedding ring was extremely noticeable ... especially since he normally sports a pretty big sparkler.

We got Mariah out earlier this week ... and the 44-year old diva was also walking around without a wedding ring -- only she replaced the expensive hardware with her signature butterfly ring.

Heartbreaker.

Nick Cannon had that "single guy glow" Monday afternoon as he left his soon-to-be ex Mariah Carey's apartment in NYC.

Freedom is a wonderful thing.

A freshly single Paula Patton re-emerged back out on the scene Monday night, hitting up Craig's in West Hollywood for a post-Emmys bash ... the first time she's been seen out since her break-up from Robin Thicke.

Mariah Carey and Nick Cannon are actually getting along -- way better than when they were together and loathed each other -- but TMZ has learned there is NO chance of a reconciliation.

TMZ first reported ... the divorce is a "done deal" and the couple has been separated since May.

We're told they are not only on good terms -- primarily for the sake of their kids -- they even went to dinner Friday in Tribeca and shockingly no one even noticed.

It's a big improvement from 6 months ago, when there was so much contempt they literally could not be in the same room together.

We're told it's all about the kids ... they're both committed to making the divorce as easy as possible on them. But -- let's just say one side tells us -- they will NEVER get back together.

Mariah Carey had a chance to spin her divorce with Nick Cannon, but she said it's simply "too hot" to talk.

Mariah was walking around NYC Monday with her nephew. As the video starts, you can see Mariah putting on a large hat she had just purchased.

But when the photog asked her to comment on her split from Nick, she pled the fifth ... citing the weather. FYI, it was only in the mid 80s in New York Monday.

Jennifer Lopez and Casper Smart insist they're not back together, and Sunday night at the VMAs ... they went through great lengths to show they aren't ... which totally means they are.

As TMZ first reported, despite being photographed together last week ... her people swear they're leading separate lives and just friends.

So J.Lo and Casper walked the VMA red carpet separately, sat separately at the VMAs (except for a quick reunion for candy) and each showed up at Mastro's following the show ... but left separately.

Where there's smoke ...

Jennifer Lopez and Casper Smart REUNITED at the MTV VMAs ... if only for a quick second ... when the dancer made J.Lo an offer she couldn't refuse -- Skittles.

Despite the fact they were sitting in different sections, Casper made his way over to Jennifer's section during a commercial break with a sugary peace offering ... and the whole thing was captured on the VMA livestream.

As we previously reported, the two were spotted out together earlier this week -- despite the fact they recently broke up.

Blac Chyna has laid down the law with Tyga --- keep your groupies and hos away from our son.

We're told Blac Chyna went nuclear after their breakup ... when Tyga began hosting raunchy pool parties with "skanky women" as their 1-year-old King Cairo looked on.

We're told they promised each other not to expose their kid to unsavory conduct -- and screwing around in swimming pools counts.

But she says there's another -- even more serious problem. She says they promised each other not to introduce King Cairo to their boyfriends and girlfriends, because if another person comes into his life and then just goes away it will traumatize him. She says Tyga's already broken that promise.

Tyga is telling friends ... maybe he's violated their deal, but she's no saint either. He claims she's been spending time with other men.

Nick Cannon is the one who decided to bail on his marriage -- not Mariah -- sources connected with the couple tell TMZ.

Nick has made it clear to all involved ... he's deeply concerned about Mariah's emotional state and is ending the marriage for the well being of their kids. He believes the environment around Mariah is toxic and fears for his kids.

We're told Nick believes his kids have already shown signs of emotional upset living with Mariah.

Our sources say Nick's MO is simple ... he wants to create an environment separate from Mariah that gives the kids a safe haven from the "chaos" at her home.

Nick is also telling his people he's deeply concerned about Mariah's mental health and believes her people don't care about anything but her ability to make money and pay their salaries.