Arcangel, the huge Latin pop star, just got arrested in Las Vegas after cops say he was caught on camera kicking the crap out of another person.

Law enforcement sources tell TMZ ... Arcangel got into an argument with someone outside the Bound Bar just off the Vegas strip around 3:30 AM Thursday, and it quickly turned violent. We're told surveillance footage shows the singer delivering a brutal side kick to the hip of the other person. The kick was so violent, it sent the alleged victim flying into a wall. 

Arcangel, whose real name is Austin Agustin Santos, was arrested for misdemeanor domestic battery and remains in custody. We reached out to reps for the singer ... so far, no word back.

There's no good time to get arrested, but this is really bad for Arcangel, who was scheduled to perform Thursday night in Las Vegas at the Latin Billboard Awards.

Story developing ... 

Britney Spears is back home after a 30-day stay in a mental health facility, but as we've told you ... she still has a ways to go for a full recovery.

Brit was spotted leaving the facility Thursday after being picked up by her boyfriend, Sam Asghari. We're told another vehicle carrying what appeared to be Britney's luggage and belongings followed closely behind, and they caravanned to her home in Thousand Oaks.

We broke the story ... Spears checked herself out of the facility, but she's still dealing with a big unresolved issue with her meds. Doctors are still working on the right formula for her, but call it "a work in progress." Translation ... she's still not right because the meds are off, but they're making progress.

The good news, according to our sources, is Britney's doing much better than when she checked in last month to get her head right ... despite the photos of her over the weekend that shows something's still off. We're told it's now all about getting the meds right.

As we reported, Britney started having major issues when she became distraught over her father's health issues.  

The complications with her meds made things worse, but she made progress over the course of the 30 days and is doing okay now.

2:07 PM PT -- Blac Chyna isn't coming close to sniffing a degree or a certificate from Harvard ... the school is totally disavowing her.

Harvard tells TMZ ... "Harvard Business School Online has not admitted nor provided an acceptance letter to a person named Angela White."

Referring to her alleged acceptance -- and the letter her team gave us -- Chyna told us, "School is going to help me take things up a couple of notches. People are always talking about me, might as well talk about the good."

Not looking so good right now.

We've reached out to Chyna's camp, but so far ... radio silence.

Blac Chyna's interest in attending a Harvard Business School Online course was hatched by a PR firm that offered to do all the work and even take a pic of her wearing a Harvard hoodie ... for a price.

TMZ broke the story ... Chyna has been accepted to take a Harvard Online course called Business Analytics, teaching students how to interpret data and make savvy business decisions.

We found out Chyna got wind of the course through an email sent to her team by Christian Emiliano, who refers to himself as Social Media Renaissance Man. 

Christian's email pitch ... for $3,250, "Our team will complete all the course work for you, all you have to do is take one test (we will provide you the study guide) and then take credit for the program." Once completed, Chyna could add the Harvard education to her resume and improve her brand. 

It gets better ... "You can go on the Harvard campus and take a picture with a Harvard hoodie on / you can post updates on your snapchat and Instagram Story." As for where the $3,250 goes ... "$2,250 for the course/$1000 for us to complete the entire course for you." 

We contacted Chyna's people, and although they acknowledge they got Christian's pitch, Chyna never hired him and decided to take the course on her own. Christian confirmed that to us as well. 

Turns out ... after we posted our story this morning, another social media star also posted her admission letter to the Harvard Business School Online course. 

So, Christian may not be Rick Singer -- the guy who got Olivia Jade and Isabella into USC after Lori Loughlin and her husband paid $500k -- but his proposal seems to offer the same underhanded way to succeed in college without really trying.

Originally Published -- 12:17 PM PT

Sad news ... one of the 7 puppies dumped in a trash bin by a woman in Coachella has died.

The Riverside County Animal Services said the puppy died Wednesday after it couldn't recover from last week's traumatic experience. As we reported ... a woman was caught on video throwing a bag filled with the 3-day-old puppies into a dumpster on an incredibly hot day in the desert town.

Fortunately, a Good Samaritan rummaging through the dumpster found them and alerted authorities.

The Animal Services said, "The little one might have been on the bottom of the bag when the woman dumped the puppies into a trash bin." A volunteer taking care of the puppies wrote on Facebook, "He was just so weak and held on for as long as he could." 

The volunteer went on to say ... "When I got him he was pale and kind of flat looking, so I think he was the cushion that saved his siblings. As the lady threw them in the bag, i think he was at the bottom and took the hit when all of his siblings landed on him."

The Riverside County Animal Services released a video Thursday showing the 6 remaining puppies that continue to recover. 

As you know ... Deborah Sue Culwell, a 54-year old resident of Coachella, is facing 7 felony counts of cruelty to animals. If convicted on all counts, she could get up to 7 years in prison. Her disgusting actions pissed off just about everyone ... including Lisa Vanderpump.

John Singleton's stroke is way more serious than his family first revealed -- it was a major stroke and he is in a coma --  and we've learned the family is in the process of establishing a conservatorship for him.

TMZ broke the story ... Singleton suffered a stroke last week after returning from Costa Rica and experienced problems with his legs. He checked himself into Cedars-Sinai Medical Center in L.A. and suffered a stroke Wednesday in his hospital room.

We know he was in the ICU as of last weekend, but family members characterized the stroke as "mild."

According to the legal docs, obtained by TMZ, John's mom, Shelia Ward, is asking a judge to appoint her temporary conservator because he is "unable to properly provide for his personal needs for physical health, food, clothing, or shelter."  

His mother said, at the time he suffered the stroke, he was engaged in several business projects and was prepared to sign a lucrative settlement agreement. She wants to handle those affairs and execute the settlement agreement.

The 51-year-old famed director of "Boyz N the Hood" did not have any medical directives ... thus the need for a conservatorship. 

James Holzhauer -- the "Jeopardy!" contestant winning prize money at a torrid pace -- has a history of breaking the bank ... 'cause he set records on another show called, "The Chase."

TMZ got details about the current "Jeopardy!" phenom's 2014 domination of 'Chase' ... a Game Show Network hit. As is his style, Holzhauer started out hot in the opening "cash builder" round, answering 12 questions correctly -- often before host Brooke Burns even finished asking them.

The 12 right answers for $60k broke the previous record and was never topped in 51 episodes of "The Chase" -- and, get this ... it could have been 13 answers if he was a Jason Mraz fan. You gotta see it.

There's more -- James also set the high mark in "The Final Chase" round by answering 19 questions correctly for his team. This record also still stands.

When it was all said and done, Holzhauer's team of 3 won $175k and split it evenly.

What's interesting ... at one point, Holzhauer was offered a chance by the show's titular "chaser," Mark "The Beast" Labbett, to win more money, and he declined ... opting to take the conservative route.

If you've been watching him on "Jeopardy!" ... you know he likes to bet BIG. James later revealed he crunched the numbers and determined the larger payoff on 'Chase' wasn't worth the gamble.

Holzhauer became the second person in "Jeopardy!" history to surpass $1 million in winnings in non-tournament play Wednesday, and owns the single-show record of $131,127. He also now holds the top 7 daily totals, and is well on his way to catching Ken Jennings, who won a total of $2.5 million over 74 games.

James has done all his damage in just 15 games.

BTW -- "The Chase" aired from 2013 to 2015, and reruns can be seen daily at 3 PM on the GSN.

Jussie Smollett might have secured his return to "Empire" -- despite ongoing controversy over the alleged Chicago "attack" -- when he kicked it in NYC with a pretty powerful show exec.

TMZ got this video of the actor leaving lunch at a Lafayette restaurant Wednesday, and he told us he was feeling "pride" about his work on the show. Turns out, he may have been feeling optimistic as well ... because the guy he was lunching with was showrunner Brett Mahoney.

Sources close to Mahoney -- who's publicly voiced his support for Jussie in the past -- tell us the lunch Wednesday was a casual hangout, and not the first time the 2 have seen each other since Jussie wrapped on "Empire" amid his scandal.

We're told Brett's been telling his friends Jussie's future on the show is still up in the air, but it's unclear if the topic was broached during their lunch.

You'll recall, earlier this week, "Empire" creator and executive producer Lee Daniels said the same -- that they're currently considering bringing Jussie back.

Now, let's connect the dots ... seems unlikely that Mahoney would break bread with Jussie if he thought they were about to 86 him from the show.

Another strong sign for Jussie ... the letter his costars Taraji P. Henson and Terrence Howard wrote imploring network execs to let Jussie stay on the show. They said he's innocent and "filled with integrity" and they want to "put this behind us and move forward.”

I believe and stand by @JussieSmollett . Keep your head up. @EmpireWriters @EmpireFOX

— Brett Mahoney (@TheBrettMahoney) February 18, 2019

The NY Post first reported Mahoney was lunching with Jussie. We'll see how it plays out, but that meal might end up being the crucial moment "Empire" and its star smoothed things out. 

As we've told you, Jussie's still dealing with drama in Chi-town ... namely that civil lawsuit the city filed to get Jussie to pay for the investigation into the alleged "attack." Essentially, Chicago wants a trial to prove he lied to cover up a hoax.

Whitey Bulger died swiftly from blunt force injuries to his head during a prison attack ... this according to his death certificate. 

Whitey's death certificate was released Thursday and shows he was pronounced dead at 8:21 AM on October 30 ... just minutes after he was bludgeoned inside his cell at U.S. Penitentiary Hazelton in West Virginia. Bulger's death is listed as a homicide in the document.

As we've reported ... 4 inmates walked into the notorious Boston mobster's cell, where he was sitting in a wheelchair, and beat him with a lock in a sock. They also tried to gouge his eyes out with a shiv and attempted to cut out his tongue. 

#BREAKING: Death Certificate: #WhiteyBulger died from “blunt force injuries of the head” & died within “minutes” of being attacked inside a West Virginia prison. @NBC10Boston pic.twitter.com/7pnvfC4BdY

— Eli Rosenberg NBC10 Boston (@EliNBCBoston) April 25, 2019

As for the motive behind the hit ... our prison sources say prison officials believe it was mob retaliation because Whitey turned informant and ratted out other mobsters. We're told officials believe that's exactly why the attackers attempted to remove Bulger's eyes and tongue. 

The attack was not caught on video ... we're told the inmates who attacked Bulger wheeled him into a corner that can't be seen by surveillance cameras. 

The ex-crime boss was on the lam for years, and was one of the FBI's most wanted before being captured in 2011 living in Santa Monica.

Bulger was convicted in 2013 for a slew of crimes, including being linked to at least 11 murders, and was serving a life sentence. He had just been moved to the maximum-security prison before he was killed. 

Bulger was 89.

There was an unwanted guest running amok at Coachella this year ... herpes.

According to honchos at HerpAlert -- an online diagnosis and treatment website for the STD -- there's been a huge spike in folks looking to get treated for herpes in the communities surrounding the famous music festival.

HerpAlert's been in business for 2 years now, with doctors issuing prescriptions to pharmacies after people submit photos of their, umm ... situation, for medical pros to review. The turnaround time is blazing fast, it only takes about 2 hours. 

We're told the site has seen a massive surge in folks seeking prescriptions for herpes since Day 1 at Coachella. A whopping 1,105 cases have been reported in Indio, Palm Desert and Coachella Valley -- and also L.A., Orange and San Diego counties where most of the concertgoers live. 

HerpAlert tells us they typically handle 12 cases a day in Southern Cali ... but during the first 2 days of Coachella, the site serviced almost 250 patients!!! The biggest previous spike was during Oscars weekend 2018, when they got a mere 60 cases a day.

Bottom line ... what happens in Coachella might stay with you. For life.