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Justin Bieber oughta think twice before loaning his car out ... because it was involved in yet another run-in with cops.

Bieber wasn't driving. The guy behind the wheel -- Lil Za -- was pulled over in West Hollywood -- apparently for tinted windows -- today at around 1:30 AM. The driver didn't have a license, so deputies put him in the back of the squad car and it looked like he was under arrest. Driving without having a license is an arrestable offense.

But deputies cut the dude a break, and he was cited and released.

You'll recall, a month ago to the day ... another one of Bieber's friends -- Lil Twist -- took Bieber's car for a high-speed ride, was pulled over by cops and a photog was struck and killed by another car while shooting the traffic stop.

As for the latest incident ... Bieber's friend flipped photogs off while sitting in the back of the cop car.

Kelly Clarkson doesn't compare to Beyonce -- because Kelly actually sang her song LIVE yesterday at the Presidential Inauguration ... TMZ has learned ... unlike Beyonce, who lip-synced to a pre-recorded track.

A spokesperson for the U.S. Marine Corp Band -- which provides the music for the Inauguration -- tells TMZ, Beyonce mouthed the words to a pre-recorded studio version of "The Star-Spangled Banner."

But the rep added, Kelly sang "My Country 'Tis of Thee" WITHOUT the help of a backing track.

The rep added, "We all know Beyonce can sing ... We don't know why she chose to use the pre-recorded track."

Robert F. Chew -- best known for playing Proposition Joe on "The Wire" -- was found dead yesterday in his apartment in Baltimore ... TMZ has learned.

According to the coroner in Baltimore, Chew died of cardiovascular disease. "Morbid obesity" was listed as a contributing factor.

Chew had very little acting experience before "The Wire" or after. He was on the cult HBO show -- which took place in Baltimore -- for five seasons.

Kourtney Kardashian says she's super excited her sister Kim is with child ... because Kim will be able to use her mom boobs to feed Kourtney's kids ... in addition to her own.

Kourt appeared on the "Today" show this morning with Kim and said she's not weirded out by the idea of letting her kids suckle from multiple Kardashian teats.

Kourt explains, "That's what they did back in the day."

TMZ spoke with a rep for the La Leche League -- an international breastfeeding awareness group -- who says, while it's true wet nurses were used in the past, it's less common today "due to awareness of pathogens that can be transmitted in milk."

Fun Fact -- Salma Hayek used her mom boobs to feed a bunch of random babies in Africa a few years ago ... and didn't receive one single complaint from the babies.

Justin Bieber beat the crap out of one of his Israeli bodyguards ... and berated the former soldier after a disagreement ... this according to a new lawsuit.

Biebs -- who's 5'7" and MAYBE 130 lbs -- is being sued by Moshe Benabou, an ex-member of the Israeli army.

According to Benabou -- who claims he worked for the singer from March 2011 to Oct. 2012 -- JB berated him and punched him in the chest multiple times during a disagreement about how to handle a member of Bieber's entourage.

Benabou is seeking unspecified damages for assault and battery -- and more than $420,000 in unpaid overtime.

But sources in Bieber's camp tell TMZ ... Moshe is nothing more than a "disgruntled employee looking for money." They say the claim that Bieber struck him is "absurd."

As for why Moshe was fired, our sources say he told multiple lies including a big one -- that he had worked closely with Justin Timberlake before being hired by Bieber.

Our sources say it was discovered that he never worked for JT a day in his life.

You may recall, Benabou was the guy who got into a physical confrontation with a photog at LAX back in February. After a brief struggle, both men fell to the ground ... and Benabou landed a pretty solid punch while the pap was being restrained by another person.

Former LA Lakers coach Phil Jackson has finally popped the question to his longtime girlfriend Jeanie Buss -- after 12 years of dating -- but the real question ... could this affect the Zen Master's possible coaching gig with the Brooklyn Nets?

Our Lakers source tells us the engagement went down on Christmas day, but Jeanie -- daughter of Lakers owner Jerry Buss -- didn't reveal the ring until moments ago.

She posted a pic of the huge rock on Twitter with the caption ... "Phil finally gave me that ring I wanted!"

Kanye West is a lucky man -- not only a newly-minted father-to-be, but also a charmed driver, because cops let him skate with a warning after he left the Chateau Marmont in West Hollywood early this morning.

Kanye didn't have much to say as he left the hotel, and judging from his exit he had places to go as he accelerated West on Sunset Blvd.

Mini-Kanye rockin' the mic, or mini-Kim rockin' the ... whatever ... point is -- are Kim Kardashian and Kanye West having a baby boy or a baby girl?

The answer is they don't know yet, but TMZ has learned ... as soon as it's medically possible -- around week 16 -- Kim and Kanye intend to learn the sex of their unborn child.

Sources close to Kim tell us the couple already decided to pass on the old fashioned, wait and see route -- and are anxious to know what she's got in there, but don't read too much into that.

A man arrested for trespassing on Taylor Swift's Nashville property earlier this month will skate -- TMZ has learned all criminal trespassing charges against the man were dropped.

As we reported, 24-year-old Jacob Kulke was busted on December 14th after allegedly hopping a fence near Taylor's property. Cops say he told them he was Taylor's BF, and had taken a bus from Wisconsin to be with the singer on her birthday.

But today, prosecutors decided not to pursue criminal charges against Kulke.

According to Kulke's attorney, one of the reasons he won't be prosecuted is because Swift's home did not have "No Trespassing" signs posted at the perimeter, leading Kulke to believe it would be okay to enter the property.

Demi Lovato took a page out of Britney Spears' down-home playbook, and spent Christmas day stuffing her face in an unexpected, but awesome, place -- the International House of Pancakes!

Demi hit up an IHOP in Texas with her family for dinner on Tuesday, and the 'X Factor' judge's ruling was -- AWESOME! She tweeted ... "Literally the best Christmas I've ever had."

The only person more excited than Demi about the meal -- a rep for IHOP who tells TMZ, "We are thrilled that Ms. Lovato came to IHOP for her Christmas Dinner and we look forward to her visiting us throughout the year."

Former New York Yankees slugger Andruw Jones' Christmas Day started out behind bars -- police in Georgia arrested him for an alleged domestic violence incident involving his wife ... following their Christmas Eve party.

According to the incident report, obtained by TMZ, Andruw's wife called police at 1:30 yesterday morning, claiming Andruw drunkenly attacked her in their Duluth, GA home following the holiday get together, dragging her through their garage and choking her.

Andruw's wife told police she had asked him to help her set up for Christmas morning after the party -- including assembling a computer desk -- and Andruw grew belligerent ... grabbing her and attacking her.

According to the report, when police arrived at the couple's home, they found the baseball player passed out in bed, still dressed in his clothes from earlier in the day. Officers then woke Andruw up and placed him under arrest.

According to Gwinnett County jail records ... Jones was booked for battery and released on a $2,500 bond.

Ashton Kutcher has finally pulled the trigger, filing for divorce from Demi Moore ... over a year after the couple split up ... and now we know why he waited.

34-year-old Ashton filed the docs today in L.A. County Superior Court, citing irreconcilable differences. He uses his full legal name 'Christopher A. Kutcher.'

Sources familiar with the situation tell TMZ ... Ashton waited so long because he wanted to give Demi the chance to file first ... it was a whole dignity thing. After a year ... when Demi showed no signs of making her move, Ashton finally did.

Ashton and 50-year-old Demi have no children together. They were married in September 2005 and separated in November 2011.

According to the docs, the property rights of Ashton and Demi will be worked out later.

Ashton and Demi split in the wake of cheating allegations involving Ashton and another woman. Ashton is currently dating his "That '70s Show" co-star Mila Kunis.

Jewish organizations around the world are furious with the Ukrainian government ... after a Ukrainian politician used an Anti-Semitic slur in a Facebook rant about Mila Kunis.

The man who set off the controversy is lawmaker Igor Miroshnichenko -- who had written that Mila (a Jew who was born in the Ukraine) is not a true Ukrainian because she's a "zhydovka" ... a word that has been used as a slur against Jewish people since the Holocaust.

After protests by Ukrainian Jews, the Ukrainian government announced the word was OK to use because it appears in the Ukrainian dictionary as a term for a Jew that isn't necessarily a slur.

Now, the famous Simon Wiesenthal Center in L.A. is getting involved -- firing off a letter to the Prime Minister of the Ukraine to "express our outrage and indignation against the slanders of the Svoboda Party directed against the Jewish community in the Ukraine."

In the letter, Rabbi Marvin Hier explains ... the term "zhydovka" translates to "dirty Jewess" ... and was used as an "insidious slur invoked by the Nazis and their collaborators as they rounded up the Jews to murder them at Babi Yar and in the death camps."

The org. has called on the Prime Minister to "publically condemn this attack and to take measures to defeat the xenophobic forces that threaten your democracy."

Chicago Bulls legend Scottie Pippen set a new record last week at a production of "A Christmas Carol" in the Windy City -- playing the first ever 6'8" 19th-century London townsman in the play -- and it was all for a good cause.

The director of "A Christmas Carol" at Chicago's Goodman Theatre tells TMZ, they created the role just for Pippen -- "He is a business man in the town and he becomes a part of the crowd scenes where we celebrate Christmas morning."

As you can see, Pippen blends right in.

Kris and Bruce Jenner are NOT BREAKING UP ... and to prove it, the reality couple put on a CLINIC in over-the-top public flirtation at an L.A. Christmas tree lot yesterday.

The rumors of an impending divorce have been swirling for weeks ... with reports that the leaders of the Kardashian squad are "faking" their relationship for the cameras.

But sources close to the couple tell TMZ ... the breakup talk is "total BS" ... and Kris and Bruce are still legitimately in love with each other.

A 24-year-old man was arrested for trespassing at Taylor Swift's Nashville home early Friday morning after he told police he took a bus from Wisconsin to be with the country star for her birthday.

Jacob Kulke was arrested at 1:45 AM after allegedly hopping a fence at the property. Kulke was detained by security and when police arrived, he told them he was the boyfriend of the homeowner.

According to reports, Kulke told police he had been in contact with someone at the home via social media and he came to town to celebrate Swift's birthday (which was Thursday). It is unclear if Taylor was home at the time.

Kulke was booked into jail and held on $10,000 bond.