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11:39 AM PT -- Logan Logan Henderson is now on the mend and he even returned to the stage to perform this past weekend.

Big Time Rush’s Logan Henderson was, uh ... rushed to the hospital in an ambulance after a big-time bloody injury he suffered onstage -- and it’s seriously graphic, so brace yourself before checking out the pic!

Sources with direct knowledge tell TMZ the band was in Krakow, Poland, on their sold-out European tour Thursday when things took a turn -- they slid down a set piece, Logan smacked his leg on something, and his knee just busted wide open. Big yikes.

This all went down toward the end of the show during one of their high-energy numbers, "Love Me Love Me" -- and the gash in his knee was so gnarly, the doctor had to close it with one giant suture to help it heal properly.

President Donald Trump is now insisting he didn't threaten any members of Congress with death ... but, he does think they're in hot water.

The 47th president discussed his controversial comments in an interview with Fox News host Brian Kilmeade Friday morning ... telling Brian that in the past those pols might've been on their way to the gallows.

That said, Trump adds, the senators and reps should be in big trouble ... because he says he certainly would be if he made the same comments with a Democrat in the Oval Office.

Jake Paul's heading into his Anthony Joshua fight locked and loaded ... El Gallo just commissioned one of the most amazing chains you'll ever lay your eyes on, made with a whopping 364 carats of diamonds!

TMZ Sports has learned the 12-1 pro boxer copped the insanely bling-y piece from famed jeweler, Vobara, ahead of his highly anticipated December 19th matchup.

This chain's composition is wild ... we're told each "round" is loaded with 5 carats of high-quality, oval VS1 diamonds, all mounted with one kilo of 8-karat rose gold.

Ja Rule was involved in an altercation last night at Barclays Center during Brandy & Monica's "The Boy Is Mine" tour stop, and turns out ... that was the height of it. Rumors of him receiving any beatdown are completely false!!!

Ja cleared up all the internet rumors with TMZ Hip Hop ...  “I don’t call police… I didn’t get jumped, they tried tho 🤣." When asked who the guys were trying to put blood in his eye, he simply said, "No clue."

Tasha K -- who's been ordered to pay Cardi B over $1 million in a past defamation, false reporting case -- jumped out on the Ja rumors, claiming the rap star had been turned to orange juice pulp ... and he clapped back at her!!!

A woman -- crowned one of Alabama's teachers of the year -- is in hot water with the law after allegedly whipping the s**t out of her child with a belt on video.

Nicole Staples -- who teaches second grade at Cottage Hill Christian Academy in Mobile -- was charged Wednesday with willful abuse of a child under 18, according to the county Sheriff's Office.

The video is startling ... Staples appears to hit her adolescent son on the backside upwards of 20 times after hurling a flurry of curses at him for not cleaning up after himself. She appears to grab him by the hair before seeming to smack him again.

Disturbing behavior down in Florida ... a man in Miami walked into a dance studio and stuck his nose in the couch cushion where an underage girl had just been sitting ... it's all on video, and now cops are involved.

The creepy footage from inside a Miami dance studio picks up with a girl sitting on a couch near the front door ... she gets up to leave, and then a man enters, makes sure the coast is clear, and then buries his face in the cushion where she'd been sitting moments earlier.

Miami Springs PD Chief Matthew Castillo tells TMZ ... one of the owners of a local dance studio contacted cops that night to report the "disturbing" incident, which happened Tuesday night as business was winding down.

Addison Rae looks like she's a big fan a popular singing competition show ... at least based on what she just wore at the airport.

Check out these images of the "I Got It Bad" singer walking to the curb at LAX on Wednesday ... she's wearing an eye mask.

Addison is an influencer turned Grammy nominee ... so the jokes write themselves, folks ... allow us to introduce "The Masked Singer." 😂

Cardi B just posted the first public pictures of her newborn baby.

The photos, captioned with the date Nov. 4, have also raised speculation she could be engaged because of the huge rock on her finger. TMZ has learned, however, it is NOT an engagement ring.

As you know ... the newborn baby boy marks her first baby NFL star Stefon Diggs.

Sydney Hardeman, who went viral for her stunned reaction to Beyoncé's 2018 Coachella set, is dead ... TMZ has learned.

Sydney's mother, Jamie Hardeman, tells TMZ ... Sydney died by suicide.

We're told Sydney took her own life last Saturday. She was engaged and set to be married this upcoming April.

A gnarly fight broke out in front of "So You Think You Can Dance" star Joshua Allen's open casket over the weekend -- and it's caused tension among his family.

Check out the video circulating online -- you can see a young female leaning over the casket, when all of a sudden, an older woman pounces on her to pull her back ... and an all-out brawl breaks out.

A Florida SWAT team had an arrest fall right into their lap, literally ... because a barricaded suspect hiding in his attic fell through the ceiling and into a sea of deputies ... and it's all on video.

Check out this footage out of Sebastian, FL ... where a SWAT team and crisis negotiators were called in to capture a man with a long rap sheet who was wanted for allegedly driving a stolen car.

The Indian River County Sheriff's Office says the guy who comes crashing out of his ceiling into the waiting arms of SWAT officers is 37-year-old Keith Rodgers ... and he'd barricaded himself in his home and taken refuge in the attic after deputies confronted him about driving a truck that was reported stolen.

Demi Lovato is sober after overdosing on drugs and almost dying years ago, but Tekashi 6ix9ine says she's bound to relapse ... and he's offering a way to make that happen, though he tells TMZ it's just an attempt at "dark humor."

Tekashi was on Andie Elle's podcast when the conversation shifted to former child actors doing drugs.

6ix9ine brought up Demi, who, as we first reported, overdosed on heroin in July 2018.

Cops in North Carolina can apparently beat the crap out of a suspect on video and go to work like nothing happened ... because that's what is playing out right now in Greensboro.

Folks are outraged over a clip that's going viral ... it shows at least three officers using force on a Black man they have pinned to the ground, and it looks like one cop has a knee near the man's neck.

A Greensboro Police Department spokesperson tells TMZ ... the officers in the video remain on active duty.

A suspect in Toronto over the weekend had a pretty rough arrest ... 'cause he was accidentally run over by the same cop car, TWICE.

Here's the deal ... viral video shows police officers firing a Taser at a man in a parking lot, and he freezes up and falls to the ground. While cops rush over to cuff him, an officer in a cruiser behind them jumps out -- but apparently forgets to put the vehicle in park, as it rolls forward over the suspect's legs and hitting the officer on top of him.

As a couple of the cops push the SUV backward off the man, the driver gets back in ... and apparently guns it, rolling the front tires over the suspect, AGAIN. The cop finally hits it into reverse -- and toots the horn twice.

Comedian Whitney Cummings is engaged ... but she's having a tough time spreading the news.

Whitney made the announcement Monday on her "Good For You" podcast, saying, "I got engaged last week ... and I don't know how to tell anybody."

She continued, "I'm embarrassed to even talk about it, and I'm trying to just get it out of the way."

Sean Paul is swapping his focus to humanitarian efforts to assist in the ongoing Hurricane Melissa that's currently ravaging his homeland of Jamaica!!!

A rep for Sean tells TMZ ... Sean was on the island and is currently preparing to help those in need through his foundation and a partnership with Food For The Poor Jamaica.

On Thursday, SP took to IG to confirm he'll do everything he can to help feed and shelter people after the storm ... outlining the nature of the damage and stressing how countless families have been displaced.