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9:56 PM PT -- Britney Spears just adjusted her caption, saying, "Don't worry they are NOT real knives!!! Halloween is soon!!!" Thing is ... you hear the clanging of the knives as they come together, so they sure seem real.

Britney Spears put her years-long fascination with knives on full display ... dangerously dancing with two massive butcher knives in a bizarre new video.

Spears posted the video Monday holding the razor-sharp blades with the caption, "I started playing in the kitchen with knives today" while she rubbed and even clapped the blades together while dancing.

The whole thing comes across as extremely dangerous -- as Spears clearly isn't trained to hold or handle the tools in such a manner ... at times jabbing them in the air.

While Britney claims she only started playing with the knives "today," we were first to report months ago Britney had a fascination with knives.

In fact, as her conservatorship came to an end, those responsible for her care made a list of recommendations ... one major rec being to keep knives away from her.

Multiple sources tell us Britney saw knives as a form of protection, afraid she's be re-institutionalized. We're told Britney keeps knives all around her house -- including in her bedroom -- and one source said she, "was paranoid someone was going to get her, and she needed the knives as protection."

Now, without Sam Asghari or anyone to truly make sure she's safe, the new video is extremely dangerous alarming to say the least.

Do you think Britney Spears is a danger to herself? Vote below.

Taylor Swift is everywhere in America these days -- and now, she's gonna be everywhere around the world on big screens ... 'cause she's taking her new movie overseas.

The singer made a major announcement Tuesday about her forthcoming 'Eras' tour documentary -- which was already getting a North American release in a couple weeks. Now, she's saying it's going to open globally on the exact same day ... in LOTS of countries.

Tay Tay writes, "The tour isn’t the only thing we’re taking worldwide…….. 🌎 Been so excited to tell you all that The Eras Tour concert film is now officially coming to theaters WORLDWIDE on Oct 13!"

The details of the expanded rollout are staggering ... TS's new 'Eras' movie is going to be playing in over 100 countries -- including every single Odeon theater across Europe.

AMC Theaters -- which Taylor is partnering with to put out her film -- says it's expecting more than 7,500 theaters worldwide to be showing this thing at once. In terms of how many tickets this will sell ... it's still being tallied right now, but probably a ton.

A month ago -- when Taylor first said the 'Era's doc would release in North America -- her fans swooped in to snap up tickets ... and they sold a record amount in just one day, about $26 million worth. Estimates had 'Eras' raking in north of $100M in its opening weekend too.

It's just the latest splashy headline for Taylor ... obviously, she's top of mind right now due to her budding relationship with Chiefs star Travis Kelce -- and now, here's another boon.

Britney Spears alarmed a lot of people with her knife dance on Instagram, with many looking for answers as to what inspired the dangerous act, and some believe Shakira holds the key.

As we reported, Britney shared a clip of herself Monday with the caption, "I started playing in the kitchen with knives today," dancing and clanking the knives together -- even jabbing them in the air.

The singer claimed the blades weren't legit, but they sure didn't sound like props based on the way they hit together.

However, Shakira recently did something pretty similar -- on national television, no less -- and folks think that's where Britney got the inspo.

In case ya missed it, the Colombian pop star gave a show-stopping performance of some of her greatest hits at the MTV VMAs earlier this month ... and at one point, she danced while both of her hands were occupied by 2 thick daggers.

It appears Shakira was paying homage to an Arabic dance, known to some as the dance of the daggers ... and people online think Britney loved what she saw, so that's why she may have tried it out for herself.

Britney's been catching some heat for her video ... and as we've reported, Britney has a fascination with knives that makes her clip a bit more concerning.

Remember, those responsible for Britney's care made a list of recommendations as her conservatorship ended -- with 1 major point being to keep knives away from her.

Sources have told us Britney sees knives as a type of protection, afraid she'd be re-institutionalized ... and we were told she keeps them all around her house, including her bedroom.

Do you think Britney Spears is a danger to herself? Vote below.

Bad Bunny just dropped a new song, and his adoring fans think it's all about Kendall Jenner -- which, considering what he's saying and showing ... might be a valid theory.

The Latin pop star just released his latest track, "Un Preview" -- along with an accompanying music video -- which BB nation staunchly believes is coded with KJ references all throughout. Considering the song's all about a cowgirl he's fallen in love with ... yeah, that's probably right.

Here are some of the lyrics (translated to English) that pretty much give away the fact this thing's all about his girlfriend. Bunny sings ... "Baby, I’m not scared // Of trying you and falling in love again // F*** it, mami, I'll follow your lead, ayy // Really crazy in the club, I'll get close // dancing and kiss your neck, ayy // With you I'm on fire."

The dude goes on to rap/sing about how hot the sex is between him and this new woman ... how they're both head over heels for each other and how he's embracing it.

Of course, there's also the imagery here that spells it out even further. The whole treatment is horse-themed -- with Bad Bunny standing in front of a toy rocking horse ... not to mention these masked cowboys/cowgirls grinding on each other. Kendall's a big cowboy hat fan.

We should also point out ... Kendall is an avid equestrian, and she took BB on a little ride a few months ago for a one-on-one date, which saw them riding a horsey together.

Taylor Swift and Travis Kelce are not "officially" dating, at least not yet ... but they are definitely headed in that direction, and the early returns seem promising.

Sources with direct knowledge tell TMZ ... Taylor's appearance at Travis' NFL game Sunday was NOT the first time they were together. We're told they have been together "several times" over the last few months.

While Taylor's show of support was very public, our sources say their person-to-person interactions before Sunday were always in a "very private setting."

Still, it's interesting Taylor is already meeting Travis' parents ... our sources say Sunday marked Taylor's first introduction to TK's mother, Donna, and father, Ed.

As you know, TayTay watched Travis score a touchdown from a suite with his family ... and cameras caught their excitement.

We're told Taylor's time with Donna, Travis' mom, went "very well" ... and that the matriarch calls Taylor "a lovely person."

Taylor has yet to meet Travis' older brother Jason -- sounds like that will have to wait -- he's busy playing for the NFL's Philadelphia Eagles.

Taylor and Travis smiled for the cameras as they left Arrowhead Stadium together after his Kansas City Chiefs pummeled the Chicago Bears, 41-10 ... leaving in a convertible. We're told they took a shot with some friends before leaving the stadium.

We didn't see any PDA from Taylor and Travis in public, but our sources say they were holding hands at the restaurant he rented out for his family, friends and teammates after the game. At one point Taylor was sitting on Travis' lap.

Taylor fit in well with Travis' friends and family ... she came to the game alone -- bodyguards excepted -- and was chatting up everyone.

Taylor's upcoming tour dates could make a full-blown relationship tricky ... she's about to go back on tour in a few weeks, and then in November she heads out for her tour's international leg. Meanwhile, the NFL will consume Travis' life, potentially through February's Super Bowl.

Adele expressed curiosity this weekend about Zak Bagans' haunted museum in the desert -- and the guy heard her loud and clear, 'cause he wants her to swing by for a scream or two ... on the house!

The "Ghost Adventures" star, who's famously obsessed with all things paranormal, caught wind of Adele talking to audience members about his Vegas-area Haunted Museum during one of her recent residency shows ... and he's thrilled about her curiosity.

ICYMI ... Adele was chatting up a guest at her concert, asking what they like to do in Sin City, and sounded awfully interested when they mentioned ZB's spooky tourist attraction.

Zak's museum features a crazy big collection of artifacts that are purported to be haunted. There's also a lot of grim history with the building itself, and the museum's been the subject of one of his shows.

Anyway, Zak tells TMZ he's personally inviting Adele to come to his establishment for a free VIP tour -- and, not just that, she can take him up on a personal séance too if she's so inclined.

He says he'd be willing to get well-known psychic/medium Patti Negri to lead it -- as PN is well-versed in this field.

Now, as kooky as that sounds ... Adele has actually dealt with personal tragedy in recent years -- including the death of her estranged father in 2021 and the recent passing of her BFF's mother. Presumably, she could try to contact these individuals ... if not others.

Whether she wants that or not, Zak's offer is out there now. And, she's practically right next door -- so why not take him up on it?

12:55 PM PT -- A source with direct knowledge tells us Taylor Swift did not sneak out of the suite, she walked out with Travis Kelce's family and their entourage.

Taylor Swift fans believe she went to great lengths to sneak out of the private suite where she was watching rumored boyfriend Travis Kelce play football ... Swifties think she left in a popcorn machine.

The fan theory is spreading like wildfire on social media Monday, with Swifties claiming Taylor was inside a large, metallic box that was being wheeled through the Arrowhead Stadium concourse, where tons of folks were waiting to catch a glimpse of TayTay.

Video shows a staffer wheeling the container as one Swiftie claims Taylor's inside the box. It's interesting there's a big bag of popcorn on top of the container instead of inside, plus a law enforcement officer keeping watch.

As you know, Taylor watched Travis' Kansas City Chiefs beat the Chicago Bears, 41-10, Sunday afternoon in KC ... showing up to support him shortly after being romantically linked to the team's star tight end.

Taylor cheered from a suite, where she was hanging out with Travis' mom ... and the two seemed to really get along.

After the game, Taylor and Travis walked out of the locker room area together ... but no one knows how she got from the suite to the stadium bowels without being seen ... hence the popcorn machine disguise theory.

Taylor wasn't too shy once she got near Travis ... they drove off in a convertible and had the top down too.

It's going to be interesting to see where things go for Taylor and Travis ... so get your popcorn ready.

Do you think Taylor Swift and Travis Kelce are the real deal, or just a PR stunt? Vote below.

Britney Spears wasn't blindsided by her little sister, Jamie Lynn Spears, joining "Dancing With the Stars" -- in fact, she was fully aware and approved ... TMZ has learned.

Sources with direct knowledge tell us, Britney got a heads up about JL appearing on the competition show before the news came out -- and we're told Britney actually took it well.

No word on who exactly delivered the update to BS, but our sources say she was fully supportive of Jamie Lynn ... and, apparently, even excited for her sibling.

Now, again, we don't know who looped Britney in -- but whoever did clearly did so with their famous rift in mind, as they've had a rocky history. At times, Britney embraced her sister ... but, she's also trashed her. A lot stems from JLS's book last year.

The status of their relationship has felt a little iffy at times -- especially as Brit has continued airing grievances about her family at large on social media -- but after hearing this ... it would appear the Spears sisters are on somewhat good terms right now.

Jamie Lynn is getting seriously accommodated ahead of her time on 'DWTS,' which kicks off Oct. 10. She's been allowed to rehearse near her home in Tennessee, on account of the fact she's a hands-on mom of 2.

Fans have been thinking former groups *NSYNC, Backstreet Boys, and Destiny's Child will all take the stage at this year's Super Bowl ... turns out, it's not gonna happen.

Sources with direct knowledge tell TMZ ... despite rumors that the 3 iconic musical bands of the past will join forces for Super Bowl LVIII in Las Vegas, it's just not the case.

We're told the groups haven't been approached to perform, and no conversations are going down to turn it into reality.

The internet's been going nuts after rumors spread about *NSYNC and Destiny's Child being slated to perform at next year's big game ... and the dream expanded to include the Backstreet Boys.

The nostalgia train has really taken off since *NSYNC reunited at the MTV VMAs and got back in the booth to record the first song in decades for the new 'Trolls' flick.

The car Britney Spears drove during, perhaps, the most cataclysmic year of her life is now for sale ... meaning someone's getting the keys to one of the most photographed celeb vehicles of all time.

The iconic ride is Britney's black 2006 Mercedes-Benz CLK350, and it's been on display at the Volo Auto Museum in Illinois since 2011 -- but now it has a price tag of $70k.

The sporty convertible was once known as the most dangerous vehicle on the streets of L.A., because it's the one Brit was driving in 2007 as her life started to spiral out of control.

That was the year she zoomed through red lights while playing cat-and-mouse with paparazzi, went for countless late night joyrides and also had an infamous hit-and-run.

While it's far from a unique car, Brit's Benz became almost as recognizable as her as paps snapped hundreds of shots of it on the daily.

This dark stage in her life came to a head in January of 2008 when she was removed from her house by ambulance, and taken to a hospital -- and later that year she would be placed under the conservatorship that remained in place until 2021.

In other words, this car's been through the wringer ... which is exactly why it's been parked in a museum for all to see.

Shawn Mendes faced a produce catastrophe while unloading groceries at home ... because his food took a tumble right out the trunk!!!

He finished up a grocery run Thursday but experienced the mishap in his driveway when he went around back to grab the goods out of his Range Rover -- unlucky for him, the items came pouring out of his trunk, with the bag tipping over entirely.

Shawn, who's still rocking his beard, tried his best to catch the falling grub, but to no avail. It all went down as his driveway's gate closed on him ... with, arguably, perfect comedic timing.

Shawn eventually came around the front to pick up the rogue potatoes before heading back inside with the salvaged food.

Ringo Starr took a nasty spill during his concert in New Mexico ... but he got right back up and made light of the sitch -- while continuing the show.

Ringo and "His All-Starr Band" had been performing for two hours at Rio Rancho Events Center in Albuquerque Wednesday night when the ex-Beatles drummer ran into trouble -- literally.

While his band played the encore, "Give Peace A Chance," Ringo dashed back onto the stage after a mini break -- and he tripped, falling to the floor.

Check out this video, obtained by TMZ, Ringo trots up a small flight of stairs leading to the stage, where he then takes the tumble.

But, he jumps right up to his feet, rushes over to a microphone and starts singing the chorus with his group.

Moments later, Ringo cracks a joke about what happened, telling the packed crowd, "I fell over just to tell you that," meaning "Give Peace A Chance." He then exited the stage.

Peso Pluma isn't gonna take any chances with the Mexican cartel ... canceling next month's show in Tijuana after death threats made to the singer were spotted in the city.

The cancellation was announced on Instagram Wednesday -- music labels Double P Records and Prajin Music Group said in a statement, "Our goal is to protect the fans and the team. For the safety of everyone involved, we will cancel our show in Tijuana."

As we reported, it's been a week since the 24-year-old singer was in the cartel's crosshairs ... when banners were spotted within the city, warning Peso to not come to Tijuana and perform.

They read, "This goes to Peso Pluma, refrain from presenting yourself on October 14, because it will be your last show due to your disrespect and loose tongue." Seems the message was received loud and clear.

The threat was signed by the Jalisco New Generation Cartel, an organization based in the city where Peso was born.

Britney Spears delivered a not-so-cryptic message to her fans, more than suggesting her book will be a scorcher about family betrayal.

Britney shared a vid of a little girl baking something, as 2 older girls crack eggs on her forehead, then bust into laughter.

She said she relates to the video on a dark level ... "similar things have been done to me so I look at this with different eyes !!! Most of my inner conflict with people is knowing the enemy is right in front of me but I kept them because I loved them !!! I'm extremely sensitive to anybody laughing at someone or bullying in any way !!!"

She goes on ... "There's so much I've kept private that's gone on with me personally and maybe one day I can let people know ... until then, there's 3 sides to every story !!! Your side, my side and the truth !!! The child within is the trust, the girl in the middle is the truth ... watch it NOW with no sound !!!"

Although she doesn't specifically mention her family, it's pretty easy to connect the dots ... "The enemy is right in front of me but I kept them because I loved them."

Britney's book is due out next month, and based on her latest words, it does not seem like the relationship between her and her family has been repaired.

Taylor Swift is looking more big picture-esqe these days -- and you can tell by the company she keeps ... in this case, chowing down with some of the biggest names in movies.

The pop star grabbed dinner in NYC Monday night -- hitting up an Italian joint in NoHo with 3 other incredibly famous women in the biz ... the film biz, specifically. Among the stars she was dining with ... Laura Dern, Zoë Kravitz and "Barbie" director Greta Gerwig.

It's certainly a power crew of ladies -- but it's fascinating to see TayTay mingling with women who like to get in front of and behind the camera ... especially when it comes to Greta, who's got the biggest flick of the year. Them getting together kinda makes you wonder.

Fact is, "Barbie" has been all the rage for months now ... and there's been a lot of speculation about a sequel -- although nothing official has been announced just yet.

Gerwig has said she'd be open to it ... but the fact part 2 isn't greenlit at this point is shocking considering how much $$$ it's made. Assuming WB wants to proceed with another chapter -- and they almost certainly do -- ya gotta wonder how they'd outdo the OG.

One way to potentially do that would be to bring Taylor on board and have her star in the film -- that, and maybe even have her contribute to another soundtrack. Dua Lipa got to do that the first time around (acting/music for 'Barbie') and it turned out to be a huge hit.

Seeing how Taylor naturally feels very on-brand for Barbie as is ... a linking up like this definitely gets the wheels turning on a would-be collab. Plus, keep in mind -- Taylor is very much so dabbling in filmmaking these days ... both in an acting capacity and directing.

Howie Dorough says he'd love to have the Backstreet Boys tour with *NSYNC -- but says Justin, JC and co. deserve their own spotlight first ... assuming they actually want that.

We got the BB member Monday at LAX, and asked about all the speculation over a possible prolonged reunion for the *NSYNC fellas ... possibly including a throwback tour, which fans really seem to want at this point.

Howie hits us with a pretty optimistic take, saying he'd be more than open to co-headlining with *NSYNC ... he'd actually welcome it, and he's sure the other Backstreet Boys would too.

While many might've assumed there's a rivalry between the 2 groups ... there isn't, according to HD. He says a lot of them are actually pretty good friends -- and it sounds like they might have even talked about this once or twice over the years.

Now that *NSYNC is putting out a new song -- for Justin Timberlake's latest 'Trolls' movie -- that would-be rekindling is at a fever pitch ... and Howie says that has to be respected.

In other words, if any *NSYNC/Backstreet Boys tour is in the stars -- and there's no guarantee it is -- he says the "Bye Bye Bye" guys should get a bite at the apple first, because there's major interest in them right now. Relevancy rules!

As we've reported .... JC and Lance Bass left the door open for a potential reunion tour, but nobody's saying it's definitely going to happen -- and until they do, everyone's probably better off cooling their jets instead of getting their hopes up.

Enjoy the new *NSYNC song ... and let's just take it one day at a time. BB stans, included.

Do you want to see *NSYNC and the Backstreet Boys tour together? Vote below.