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YouTube music stats won't be represented on the Billboard Charts next year after a dispute the streaming giant called an "outdated formula" ...radio and podcast host Bootleg Kev agrees!!!

TMZ Hip Hop linked with Kev at TDE's 12th annual Christmas giveaway ... boosted by appearances from Kendrick Lamar, Dr. Dre, SZA, and more!!!

the Real 92.3 personality tells us Russ was right on the money in his criticism of Billboard refusing to acknowledge YouTube as an equal to DSPs such as Spotify, Apple Music, and more.

Nick Reiner is spending his days in an L.A. jail, dealing with the aftermath of the violent murders of his parents, and he's not been able to fully process it ... TMZ has learned.

A source with direct knowledge tells TMZ ... Nick is not reeling in grief. Rather, he's "in a fog"  ... in no small part due to his medical condition and the meds he's taking.

Our source goes on to characterize Nick as "calm," "cognizant," and "dazed" -- adding Nick isn't even close to processing what happened.

TMZ broke the story ... Nick had been diagnosed with schizophrenia. In the weeks leading up to the murders, we're told he was out of control. Our sources characterized Nick as "erratic" and "dangerous." As we reported, he was recently treated at an L.A.-based rehab facility that specializes in mental health and substance abuse and was under the care of a psychiatrist.

1:05 PM PT -- Sources close to the couple tell TMZ they have NOT broken up and are just fine.

It's over between Steven Tyler and his longtime girlfriend Aimee Preston ... TMZ has learned the couple has called it quits on their relationship.

Multiple sources with direct knowledge tell us Steven and Aimee have broken up ... though it's unclear when they separated and what led to the split.

Steven hired Aimee as his personal assistant way back in 2012 ... they started dating in 2014 but waited until the 2016 Oscars to go public with their romance, holding hands at Elton John's AIDS Foundation Oscars viewing party.

Nick Reiner was an unsolvable dilemma for his parents ... so says a substance abuse treatment expert.

Nick Mathews -- the founder and CEO of Southern California-based treatment center Stillwater Behavioral Health -- joined us on "TMZ Live," and we asked him about Rob Reiner and Michele Singer Reiner's son, who is charged with their murders.

For Mathews, Nick presented a treatment provider's worst nightmare ... he was diagnosed with schizophrenia, but had been in and out of rehab for years and struggled with substance abuse.

Just listen to Mathews explain all the challenges Nick would present for the rehab centers and doctors tasked with treating him ... there's no quick, easy fix or even a cut-and-dry solution here.

Not part of the Throb Mob yet? Buckle up, ’cause Boy Throb -- the TikTok viral boyband -- will soon have your hearts throbbing too ... but they want to make one thing crystal clear, telling TMZ they’re not satire ... even if the full group hasn’t hit the stage together just yet!

Three of the four Throbbers -- Evan Papier, Anthony Key and Zachary Sobania -- chatted with TMZ Thursday fresh out of a Chase Bank ... where they were trying to score a loan to cover visa costs to get their fourth member, Darshan Magdum, from India to the U.S. Yeah -- that’s one big indicator of just how serious they are.

Their infectious, high-energy hustle to get Darshan -- currently holding it down on Zoom -- over to the States has sent them rocketing to viral fame. And with Grammy dreams already locked in, the guys insist they’re built to last.

Death and taxes are unavoidable, but Britney Spears is trying to get out of making a $600,000 payment to the IRS ... and she says the tax man is grossly mistaken.

According to new legal docs, obtained by TMZ, the IRS sent Britney a Notice of Deficiency for the tax year ending 2021, claiming she owes over $600K.

Britney is disputing the figure ... and she filed her own legal response claiming the IRS miscalculated and that she doesn't actually owe the tax man so much as a dime.

Rob Reiner's and Michele Singer Reiner's bodies have been released from the L.A. County Medical Examiner's custody ... TMZ has learned.

A source with knowledge tells TMZ ... the Reiners' bodies have been released to the family. Details on a service will be released at a later time.

As you know ... Rob and Michele were found dead in their Brentwood home Sunday and their son Nick Reiner has been arrested and charged with their murders.

Nick Reiner was diagnosed with schizophrenia, and in the weeks leading up to the murder of his parents, Rob and Michele Reiner, the meds he was taking made him "erratic and dangerous" ... TMZ has learned.

Two sources with direct knowledge tell TMZ ... Nick was under the care of a psychiatrist for mental illness. We're told in the month before the murders, Nick's behavior had gotten "alarming."

He had recently received care at a Los Angeles-based rehab facility that specializes in mental illness and substance abuse. We're told the facility charges $70,000 a month ... and lots of rich, powerful parents send their troubled kids there.

Our sources say 3 to 4 weeks before the murders, doctors changed his meds and he became even more erratic. Our sources say doctors were trying to adjust the medications so Nick stabilized, but it wasn't working.

Top Dawg Entertainment's annual Christmas Concert was once again the talk of the city of Watts with plenty of gifts and cheers being distributed ... and performances from several of the biggest artists, EVER!!!

TMZ Hip Hop was live and direct inside the renowned Nickerson Gardens housing projects once again to take in the festivities, which included blockbuster performances.

Kendrick Lamar and SZA shut down the evening, Dr. Dre and Snoop Dogg spread "California Love," and R&B sensation Mario performed "Let Me Love You."

JB Smoove is reflecting on Rob Reiner's life and work ... saying they’d been planning to link up for a while, but now JB's left with a meetup that never happened, and a moment he’ll always regret.

TMZ caught up with JB at LAX Thursday, and he tells us Rob had veganism on the brain and was planning to hit him up for advice ... but sadly, that conversation never got the chance to happen in person.

You gotta catch the clip -- JB also reflects on how Rob basically saved "Seinfeld," which of course led to the later success of "Curb Your Enthusiasm." And JB reminds us about those rare moments we miss when we let our day-to-day busy lives get in the way of deeper connections.

The "Ghost Adventures" episode featuring Weezer bassist Scott Shriner’s ex-wife, Jillian, is about to air ... and TMZ’s got the chilling first look, giving a pretty unsettling peek into her headspace before that wild run-in with cops earlier this year.

Have a look -- Zak Bagans says things took a seriously dark turn after Jillian gifted him serial killer Samuel Little's ashes, along with hand-drawn portraits of his victims that he’d left her in his will after she once wrote a book about him.

Nancy Grace says the double homicides of Rob Reiner and Michele Singer Reiner are a textbook example of a case that calls for the death penalty ... and that could be bad news for alleged murderer Nick Reiner.

Nancy tells TMZ ... this case is the classic example of when capital punishment should be applied, but that doesn't mean it's going to happen.

Los Angeles District Attorney Nathan Hochman mentioned the death penalty in a recent press conference, so it's being talked about among prosecutors ... but as Nancy explains, a final decision on capital punishment goes way beyond the D.A. office.

New footage shows Nick Reiner walking around in Santa Monica hours before his parents' dead bodies were discovered in their Brentwood home ... and he's heading toward the hotel he checked into.

TMZ obtained surveillance video from a local business on Santa Monica Pier. You see Nick walking down the sidewalk, towards the Pierside Santa Monica hotel.

The video was shot around 4 AM Sunday ... and Nick looks like he's carrying a black backpack and wearing a hat ... just like the video we obtained of him at a Brentwood gas station earlier in the evening.

We don’t know if this video of Nick was shot before or after he allegedly murdered his parents.

What we do know is that he checked into the hotel approximately 6 minutes after he's seen in this footage. Sources with direct knowledge told us no one saw any blood on Nick when he arrived at the hotel at 4:15 AM.

Riley Keough was snapped out and about for the first time since a bombshell lawsuit allegation claiming she's the biological mother to John Travolta's youngest son ... and TMZ has the shots.

Check out the pics ... Riley seemed to be in good spirits, doting on her kids among Christmas lawn decorations. A nanny helps Riley rally the two children while they admire the gingerbread man, miniature reindeer and tiny sleigh on a front lawn.

Riley shares two kids with husband Ben Smith-Petersen -- daughter Tupelo, 3, and a second child, whose name has not been publicly disclosed, who was born earlier this year.

Kata Hay, a former contestant on "The Voice," has been arrested on a vehicular homicide warrant ... TMZ has learned.

The Goodlettsville Police Department in Tennessee tells TMZ she had a warrant out of Davidson County, TN ... and was picked up by authorities in Oklahoma early Wednesday morning. The Osage County Sheriff's Office in OK tells TMZ a deputy from their department arrested her in a residence in the county on the active Tennessee warrant.

She's currently being held at the Osage County Jail in Pawhuska, Oklahoma, and the sheriff's office tells us she will go before a district court judge Monday to sign a waiver of extradition.

12/20 -- 7:55 AM PT -- Corey Feldman's lawyer Neville L. Johnson tells TMZ ... Feldman had no involvement with the documentary and is currently looking into how the footage was obtained in the first place.

He's also denying Haim "molested" him ... saying that idea is a "sensationalized mischaracterization of the statements made in the film."

Corey Haim's mother is blasting Corey Feldman for claiming her son "molested" him back in the day ... she says Feldman is lying about her late son for attention.

Haim's mother, Judy Haim, tells TMZ ... shame on Feldman for "creating another lie to poison people's heads and keep himself relevant."

In a new documentary, "Corey Feldman vs. The World," Feldman claims Haim molested him when they were filming 1987's "The Lost Boys."

Haim died in 2010, and Judy points out her son is not here to defend himself against what she says are bogus claims from Feldman.