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Peter, Paul and Mary singer Peter Yarrow is dead after a long battle with cancer ... TMZ has confirmed.

Peter died Tuesday at his home on Manhattan's Upper West Side ... according to his publicist, Ken Sunshine, who tells us Peter's cause of death was bladder cancer.

We're told Peter was diagnosed with cancer four years ago, and battled the disease until his death.

A hotel worker accused of delivering drugs to Liam Payne in a soap box shortly before his death in Buenos Aires has turned himself in to police in Argentina after being on the run.

Prosecutors tell TMZ 21-year-old Ezequiel David Pereyra negotiated his surrender through his lawyer Monday evening. Police were informed, went to his house, and arrested him.

He had been on the run since being charged with supplying Liam with narcotics.

Post Malone is getting credit for giving one single mom a "Christmas miracle" ... tipping the unsuspecting server thousands of dollars after crossing paths with her during the holiday.

Here's the skinny ... the rapper stopped by The Railyard Bar in Houston on Christmas Eve, where single mom Renee Brown was working as a bartender.

As Renee told Music Mayhem ... she was having a Blue Christmas, as she was "so sad" to not spend Christmas Eve with her 9-year-old daughter. However, Post Malone rolled in with some friends, including Shaboozey, and drank for a while ... and afterward, the "Sunflower" artist tipped Renee $20,000 -- which she said changed her life at an extremely difficult time.

Bad Bunny was living his best life in his native Puerto Rico, celebrating the release of his sixth studio album, "Debí Tirar Más Fotos," with an impromptu performance that had everyone vibing!

Check out the clips -- Bad Bunny literally took things to new heights, making his way to the balcony of the Casa Histórica De La Música in Cayey to hype up his fans ... rocking an oversized straw hat, taking shots, and soaking in the crowd’s energy.

BB’s performance wasn’t your typical concert spectacle -- it was an intimate affair Sunday night, with everyone in the crowd, including the rapper himself, having the best time.

Elton John says his eyesight's fine ... just ask his Golden Globe presenter Rihanna -- or, is that Brandi Carlile?

The singer-songwriter took to the stage to present an award at Sunday night's show ... walking out with country music star Carlile -- and, at first, he seems to get serious, saying he's going to address all the reports about his eyesight.

Elton tells the crowd he'd like to talk about the persistent reports about his regressive eyesight ... explaining the rumors are overblown and it's not really as bad as it seems.

Singer Brenton Wood, best known for his 1967 hit "The Oogum Boogum Song," has died, TMZ has learned.

Wood's manager and assistant, Manny Gallegos, confirmed the news to TMZ, revealing he passed away today at his Moreno Valley, California home, surrounded by friends and family.

As of now, his cause of his death has not been revealed.

Braian Nahuel Paiz, a Buenos Aires-based waiter, has been arrested in connection to Liam Payne's death ... for providing Payne with cocaine.

Paiz was booked by authorities outside his home -- where he was under house arrest -- in the Argentinian capital, days after he was charged in connection with the singer's passing.

Local authorities raided Paiz's home earlier Friday before arresting him.

Diplo was trippin’ — literally — during a CNN interview to ring in 2025 — and his back and forth with hosts Andy Cohen and Anderson Cooper was one for the history books.

The famous DJ made a virtual appearance on CNN’s "New Year’s Eve Live" with Andy and Anderson who were standing alongside each other in Times Square waiting for the ball to drop.

Check out the video … Andy kicked things off by asking Diplo about the most conventional place where he had done LSD.

Celine Dion is setting her intentions for the new year ... hinting another comeback is on the horizon after her triumphant return to performing this summer.

The singer, who announced her stiff-person syndrome diagnosis 2 years ago, took a moment on New Year's Eve to thank her devoted fans for their "unwavering support" throughout this trying time.

As Celine put it ... her fans' "love and energy" has inspired her "every day" amid her health issues -- which saw her take a step back from performing in recent years.

Janet Jackson's paying homage to one of her career milestones ... 'cause one of her dancers grabbed her chest from behind during her recent show -- and, it's pretty clearly a throwback to her 1993 album, "Janet."

The singer-songwriter took the stage at Resorts World in Vegas Monday ... and, while outfitted in a tight black leather bodysuit, a dancer came up and ran his hands over Jackson's chest ... while Ms. Jackson looked ready to get 'Nasty' with it.

The Vegas pose calls back to the cover of her 1993 album "Janet," which showed Jackson facing the camera with her arms up in the air, with two hands cupping her bare breasts from behind -- the wide release only showed her from the neck up, but the limited edition featured the full photo. The image was also on the cover of Rolling Stone magazine that year.

Alabama Barker is regretting her past use of vape pens ... she had a medical scare involving nicotine withdrawal which recently saw her rushed to an L.A.-area hospital ... TMZ has learned.

Sources familiar with the situation tell TMZ ... Travis Barker and Shanna Moakler's daughter was an occasional vaper ... that is until she started pursuing music more seriously this year.

We're told the 19-year-old, who is pursuing a rap career, was advised by those in the music industry to drop the nasty habit given it's so bad for a person's voice.

Liam Payne was advised by his psychiatrist just weeks before his death ... he needed a "higher level of care" than she could provide.

In a letter, filed with the court in Argentina and obtained by TMZ ... the One Direction star's psychiatrist informed the British singer in September she could no longer provide psychiatric care for him.

As the psychiatrist put it ... she decided to stop treating Liam "after careful consideration and assessment," but advised him to continue with a treatment plan -- which included taking medications only as prescribed, avoiding heavy drinking while on medication, weekly therapy, meeting with a primary care doctor, and further testing.

Mariah Carey might be vibing to some Silk Sonic tones ... 'cause she was out in Aspen with one half of the band -- and, she and Anderson .Paak certainly kept dating rumors alive.

The Queen of Christmas grabbed dinner at Duemani restaurant with the singer-songwriter and other close pals in the popular celebrity holiday spot in Colorado Sunday ... wearing a svelte black dress and a beautiful piece of jewelry wrapped around her neck.

.Paak kept it classy in a long gray coat and fashionable hat ... flashing a winning smile as he exited the restaurant -- while his hand's in hers!

Amanda Bynes made an appearance at 50 Cent’s Las Vegas residency over the weekend where she met the hip hop legend and shared details with him about a project she's working on.

Vegas sources tell TMZ ... Amanda was on hand at "50 Cent: In Da Club," at PH Live inside Planet Hollywood Resort & Casino on Saturday night. It was the rappers second show of his new Sin City residency. We're told during the performances, Amanda was relaxed and happy while mingling with fans.

Our sources say after the show, Amanda made her way backstage with a friend for a meet and greet with Fifty. We're told during their conversation, AB was overheard telling him about a screenplay she's been working on. She was also overheard telling people she's "been a fan of 50 Cent for years" and couldn’t resist coming.

Tina Knowles is well aware some are popping off over Beyoncé's Netflix Christmas Day halftime show performance ... and she's not having it.

As you know, Beyoncé took the stage at the Texans-Ravens game earlier this week in her hometown of Houston ... but of course, there were some -- such as Dave Portnoy -- who bashed the show and the superstar.

Momma Knowles recently took to Instagram to clap back at haters, saying in part ... "It is mind-boggling to me that you would take your precious Christmas day and watch a performance of someone you hate and you don’t think has talent so that you can go talk ish about it later😂😂."

Mariah Carey's going back to her roots -- her hair roots, that is -- changing up her usually silky smooth 'do for a curly look reminiscent of her style back in the day.

The singer-songwriter pulled up to Catch Steak, a high-class restaurant in Aspen ... bundled up in a pristine white coat and matching boots with just a hint of her long legs showing through the garment's opening.

Her curly hair is eye-catching here ... down the left side of her face while the hair on the right is tucked behind her ear.