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Sorry ladies ... Chandler Parsons is off the market. And sorry fellas ... his insanely beautiful model girlfriend is going to make you very, very jealous.

TMZ Sports has learned the Memphis Grizzlies stud has been dating 23-year-old Cassie Amato and they're in a committed relationship. No word on how they met ... but we're told things are serious.

Sources tell us Chan-Dog and Amato -- she lives in L.A. -- are cool with being 1,800 miles apart during the season ... 'cause Parsons has that dope ass $11 MILLION mansion in Bel-Air for the off-season.

Parsons even made things Instagram official -- posting a photo of her on Valentine's Day with the caption "my valentine everyday."

Chandler has a penchant for beautiful women -- see here, here and here -- and Cassie definitely checks all the right boxes.

'The Ultimate Fighter' vet who went viral for his "let me bang, bro" explosion on 'TUF' won't be bangin' for a bit ... 'cause he's gotta spend 30 days in jail after being arrested for DWI.

Julian Lane -- a cast member on seasons 16 and 25 of the UFC's reality show competition -- was arrested back in October after cops found him asleep at the wheel at an intersection in Mansfield, Ohio.

Cops said Lane was "lethargic and slurring his speech" ... and noted several beer cans and weed in the passenger side of his car.

Julian was transported to the Mansfield police dept., where he blew a .10 ... and charged with 3 misdemeanors -- DWI, driving with a suspended license and possession of marijuana.

The DWI was later reduced to a lesser charge because Lane wasn't physically driving his car when he was rolled on ... and his suspended license charge was dismissed.

But, he'll still have to spend 30 days in the slammer -- starting on April 4.

Lane's scheduled main event fight at Ring of Combat 62 tonight was cancelled ... likely as a result of his arrest.

If you ever wanted to see Adam Sandler sing about his daddy f****ng his eye with his penis ... ya shoulda been riding the subway Wednesday night in NYC. Also, you're a little twisted.

TMZ got this video of Sandler doing his thing, kinda incognito in a hoodie and looking like your everyday subway tunnel busker. People clearly recognized his voice though as he busted out some new songs, including one about walking in on his parents having sex -- hence the penis in the eye thing.

The subway performance came right after he shot at Comic Strip Live ... part of his lucrative Netflix deal.

At one point he warned the gathered crowd -- "Scary s**t is coming." They stuck around anyway, even though it doesn't seem like they tipped him much.

Packers running back Aaron Jones just got punished for his October arrest -- driving while high on weed -- and it's gonna cost him driving privileges for 6 months.

Jones was initially pulled over in Green Bay on Oct. 1 for going 79 mph in a 55. During the stop, the officer smelled weed.

And after Jones bombed a field sobriety test, he admitted on camera "I was smoking it."

The 23-year-old was initially charged with operating a vehicle with a restricted controlled substance, speeding and operating without a valid license. In exchange for pleading no contest to the weed charge, the remaining 2 charges were dropped.

Along with losing his license, Jones will have to pay a $1,047 fine and undergo drug assessments to make sure he doesn't mess up again.

Don't smoke and drive people.

Floyd Mayweather tells TMZ Sports ... that brand new jet he posted on social belongs to HIM -- explaining, "I'm not posting a private jet if I'm chartering."

Floyd gifted himself the new plane for his 41st birthday -- by our count, it's the THIRD private jet Floyd has purchased for himself in the past couple of years.

We spoke with Mayweather about his aircraft fleet -- here's what he told us:

"I'm not posting a private jet if I'm chartering. If I'm chartering a jet, I'm not posting it. We own jets."

The new jet appears to sit at least 14 people comfortably -- plus the flight crew.

Tekashi69 just survived an epic ass whooping, but he's not going to Disneyland next -- instead he's dropping 6 figures on some scary jewelry.

The week after the Brooklyn rapper walked away from that epic LAX brawl, and faced violent threats in Texas, he's flossin' a Billy the Puppet charm covered in 24.2 carats of diamonds and black diamonds. It's hanging from a gold and diamond Cuban link chain. We think Jigsaw would be proud.

And get this -- the mouth of the pendant is spring-loaded so it opens and closes when he walks ... freaky.

The rapper worked with Houston jeweler Jimmy Boi to come up with the piece, to match his face tattoo. They previously collabed on his '69' spinner chain, too.

Although, 6ix9ine bragged he spent $300k on the "Saw"-inspired ice, we're told it's only valued at just over $100k. Guess math ain't his thing.

Still, can't imagine this will keep his haters away.

Heather Locklear's boyfriend was arrested for DUI just hours after the actress was busted for felony domestic violence.

Law enforcement sources tell us Chris Heisser was arrested at 12:43 AM Monday morning by the California State Highway Patrol. We're told he was spotted on the 101 freeway driving at a slow rate of speed -- officers pulled him over and conducted a field sobriety test. Chris blew a .19 and a .20 ... the 56-year-old was cited and released a short time later.

TMZ broke the story ... Locklear was arrested at her Thousand Oaks home at 10:27 PM Sunday night. Her brother called the cops after witnessing Locklear and Heisser in a nasty fight.

Locklear was booked on one felony count of domestic violence and 3 counts of misdemeanor battery to police officers.

Heather Locklear was arrested Sunday night for felony domestic violence and battery on a cop.

The incident occurred Sunday night. Deputies responded to a home in Thousand Oaks, CA ... someone reported domestic violence.

During the arrest she allegedly became combative and attacked a cop. As a result, she was also arrested on 3 counts of misdemeanor battery on an officer.

According to the 911 call, Heather's brother came to her home and saw Heather and her boyfriend fighting. The brother called 911. We're told cops observed that the boyfriend had a visible mark.

Law enforcement sources tell us when cops tried putting Heather in custody she became combative, flailing, kicking and struck 3 deputies. Heather was cuffed and taken to the hospital for evaluation.

The 56-year-old has had troubles in the past with substance abuse ... she has been arrested for DUI and had issues with prescription drugs.

Heather has had domestic violence issues in the past. In 2011, the LAPD was dispatched to Jack Wagner's home -- her then-boyfriend -- after the 2 allegedly got physical with each other during a heated argument. At the time a law enforcement source told us, "She lost it on him and he retaliated." Neither wanted to press charges against the other.

Cops aren't saying who she allegedly attacked in the home.

Locklear is in the process of posting bail.

What do Rick Ross and Tom Brady have in common?? When they connect with Gronk ... amazing things happen.

Rozay -- who can basically be dubbed Gronk's off-season QB at this point -- recruited the Pats superstar to get the crowd turnt at Rockwell nightclub's 2nd anniversary party in Miami over the weekend ... and man, did it work.

We're told R.R. noticed Gronk in the crowd and called him up on stage for a song ... busting out moves that only Gronk can pull off. As a thank-you, Ross hooked up Gronk's table with some Belaire Rose after his lit performance!!

Of course ... Ross and Gronk go WAYYY back -- remember when the dynamic duo got CRAZY celebrating the Super Bowl win a year ago??

NBA YoungBoy allegedly got caught on camera body slamming his girlfriend mere hours before he was arrested in Florida this weekend ... and the footage is brutal.

TMZ has obtained surveillance footage of what we're told shows YoungBoy throwing his gf, Jania, down on the floor of a hotel hallway in Waycross, Georgia Saturday.

Sources at the hotel tell us this happened a few hours before the rapper was arrested in Tallahassee on an outstanding felony warrant for kidnapping and other alleged crimes.

We're told a hotel guest heard the commotion and called the front desk to alert them, and then the front desk called cops. Sources say YoungBoy and Jania had fled by the time police arrived ... but the footage and evidence found in their room was enough to issue a warrant.

We're told on top of the disturbing video ... cops found blood in their room. TMZ broke the story ... YoungBoy got busted later that night after law enforcement came into contact with his tour bus.

Cardi B just bought Offset a brand new house ... made out of diamonds, but this crib fits around his neck.

Cardi was busier than we thought over NBA All-Star weekend 'cause she dropped $250k on a pendant covered in 150 carats of diamonds. We're told Cardi ordered the "Bando" (that's abandoned house if you're not down) from celeb jeweler Elliot Avianne. The piece is ridiculously detailed -- complete with graffiti, an oven and 2 figurines of Offset ... both of them armed!

We're told Cardi wanted to give it to her fiance for Valentine's Day, but they weren't together until they hooked up in Los Angeles last weekend.

BTW ... Avianne is where we frequently see rappers -- like the Migos guys, 2 Chainz and more -- shopping in NYC.

Melania Trump's all bark and no bite, according to a Florida school shooting survivor who says the First Lady whiffed on a chance to denounce cyberbullying from her own own family member ... Donald Trump Jr.

Lauren Hogg tells TMZ ... Melania's failed to step up after Trump Jr. hit the "like" button on a pair of tweets bashing Lauren's brother, David ... who also survived the shooting. The tweets accused David -- who's been very vocal about the need for new gun laws -- of running damage control for the FBI, and being a tool for mainstream media.

Lauren's adamant ... the First Family owes the Hogg family an apology "because (Donald Jr.) in a way kicked a wound that hasn't healed yet." She also finds Melania's silence odd, considering she tours the country talking about the need to stop bullies.

She adds, "I absolutely think it is cowardly for the first family to not condemn the accusations and trolls who are cyber bullying us.”

Ex-NFL player Jonathan Martin -- who was at the center of the Miami Dolphins bullying scandal -- has been detained by police ... after he allegedly posted a disturbing photo of a gun, ammo and the names of ex-NFL teammates.

The post first appeared on Martin's Instagram account -- showing an image of a shotgun surrounded by ammunition with the caption, "When you're a bully victim & a coward your options are suicide, or revenge."

He also listed social media handles for ex-Dolphins teammates Richie Incognito and Mike Pouncey.

Martin also posted the name of his former high school -- Harvard Westlake -- one of the most exclusive private schools in the country.

Harvard Westlake closed the school in the wake of the threats -- telling students to stay off-campus in an abundance of caution.

Law enforcement tells TMZ Sports ... "The individual we believe to be responsible for the social media post has been detained and the investigation is ongoing."

Martin famously accused Incognito and Pouncey of physically and emotionally abusing him during his stint on the Miami Dolphins in 2013.

The players claimed they were just harmlessly hazing Martin.

J Lo went all out for her twins' 10th birthday party ... and she took REALLY good care of the people who helped throw it.

Jennifer put on a bash for more than 30 guests at the Sugar Factory in Las Vegas Thursday night to celebrate Max and Emme's bday. We're told the party arrived around 5 PM and threw down for FOUR hours ... and made good use of their time.

Well-connected sources tell us the bill was $7,500 and included custom cakes for each child -- red velvet Mario Bros. cake for Max and chocolate sloth cake for Emme. They also gorged on virgin gummy worm goblets, and a King Kong Sundae ... with 24 scoops of ice cream topped with sparklers!

There's a new Bieber coming into the world -- and it's a she ... TMZ has learned.

Sources close to Justin Bieber's dad, Jeremy, tell us his new bride, Chelsey Rebelo, is pregnant with a baby girl -- which means Justin has a new sister on the way.

We're told Chelsey is about 16-20 weeks along (4-5 months) and that her and Jeremy's pink-themed wedding in Jamaica this week was in honor of their forthcoming daughter. It's her first kid with Jeremy -- who already has 3 of his own ... Justin, Jaxon and Jazmyn.

As we reported ... Justin didn't make a toast at his dad's wedding, but was pretty preoccupied with Selena Gomez during the trip. They were seen all day hugging and kissing. He also seemed to be in very good spirits, and now we fully know why.

Congrats to the Biebers!

Jemele Hill says her opinion of Donald Trump has NOT changed -- she still believes he's a white supremacist ... but she probably wouldn't ever tweet that again.

The ESPN star appeared on "The View" on Wednesday and was asked about the tweet that led to her suspension back in October.

"I still stand by what I said," Hill told Meghan McCain ... adding, "I don't think his supporters are white supremacists."

However, Hill says Trump is surrounded by people with similar beliefs -- including Steve Bannon and others who have "played footsie" with white supremacists.

Hill also said if she had to do it over again, she wouldn't have tweeted -- instead she would have gone to ESPN and asked to write a column so she could have explained her position in greater detail.

We spoke with Hill after the show and she told us ESPN has given her the green light to talk about "issues that intersect with race sports culture and politics" in her new role with ESPN's website, the Undefeated.

And since she's a pop culture fanatic, we also asked Hill about comic books and the new "House Party" remake!