The Kardashians

She's only been on the road for 18 days, but Kylie Jenner already has a 3-car chain reaction collision under her belt ... TMZ has learned.

16-year-old Kylie -- driving her brand new $125k Mercedes SUV -- was driving in Calabasas yesterday around 5pm when she slammed into the back of a Toyota, which slammed into the back of a Subaru SUV.

The Toyota suffered major damage to the back-end of the car (you can see the back bumper stuck in Kylie's front grille). The Subaru also suffered bumper damage.

We spoke to a witness who says Kylie immediately got out of her car -- apologized -- and asked if everyone was OK. She eventually exchanged info with the other drivers and left.

Cops arrived to the scene a short time later, but Kylie was already gone.

We're told it didn't appear anyone suffered any serious injuries ... and everyone involved in the crash acted very cordial toward each other.

Kylie turned 16 on August 10 ... and was first spotted behind the wheel of the SUV at her Sweet 16 party on August 17.

Hopefully, the Jenner family has good insurance ...

12:08 PM PT -- Kylie's car is now at the body shop!

Lamar Odom has finally returned home ... with Khloe Kardashian ... but he remains undecided about seeking treatment for drug addiction, TMZ has learned.

Odom returned to his L.A. pad Monday after going off the grid for several days. Sources tell us both Lamar and Khloe are inside the home and addressing some serious issues, including Lamar's out-of-control crack problem.

We're told there's still no talk of divorce -- and Khloe is determined to help Lamar get his life back on track.

One source tells us Lamar is "open to reason and listening to the people who love him the most" ... a drastic change from a week ago, when L.O. rejected an attempted intervention.

We're told no decision has been made on possible treatment, but Lamar is "receptive."

Lamar seemed to be in good spirits Monday night -- when he was spotted out on a gas run near the home and stopped to pose for a photo with a young fan.

We know ... several of Lamar's NBA friends have tried to reach out to him, but it seems for the most part, L.O. is keeping to himself.

Khloe Kardashian hasn't given up on her marriage to Lamar Odom ... at least publicly ... because she's still wearing her wedding ring.

Khloe was on her way out of a medical building in L.A. Monday when the photo was taken -- and while it's obvious she was trying to hide her face, she was clearly NOT trying to hide her symbolic commitment to her husband.

Lamar Odom was deep into drugs while he was playing for the Dallas Mavericks and there is evidence he was doing the exact same thing while playing for the Lakers ... TMZ has learned.

Sources connected to a Westin hotel in Memphis tell TMZ ... in March of 2012, shortly before Lamar was cut from the Mavs, he stayed in one of the guest rooms while his team was in town playing the Grizzlies.

Our sources say when Lamar left, hotel employees found major carpet damage ... including quarter-sized burn marks. The damage was so bad, the hotel had to replace the carpeting in the room.

Our sources say hotel employees also found white powder on the desk blotter and the room reeked of noxious smoke. Our sources say it was obvious there was serious drug use going on in the hotel room.

The Westin is one of numerous hotels where NBA players stay when they're on the road. TMZ has contacted a number of these hotels in various cities. We've learned from several hotel employees ... they had complained about the state of the rooms when Lamar left -- similar to what happened in Memphis -- and this was while he was playing for the Lakers.

Our sources say no one on the Mavs knew Lamar was a substance abuser while he was on the team, but everyone knew something was seriously wrong with him.

We're told that during at least part of the time he was playing for the Mavs, Lamar was smoking Oxycontin and cocaine.

Odom's problems were so severe, he was cut from the Mavs mid-season and paid in full just so he would go away.

TMZ broke the story ... the drug use escalated to crack -- and we're told Lamar's level of crack use is now alarming and life-threatening.

Lamar Odom is wearing the stress of his marriage -- and possibly his NBA career -- falling apart as he battles addiction to hardcore drugs ... and TMZ has the first photos of him in several days.

Lamar's face looked gaunt when he was spotted Monday afternoon driving his SUV around the San Fernando Valley ... not far from his home with Khloe Kardashian.

As TMZ first reported ...Khloe kicked Odom out of the house last Wednesday when he rejected her attempt to stage an intervention -- hoping to convince him to get treatment for his addiction to crack cocaine.

But 2 interesting signs from Lamar's outing Monday -- he was still wearing his wedding ring ... and he was spotted driving into the gated community where he and Khloe live.

Lamar Odom will remain a free agent -- at least for now -- because the L.A. Clippers refused to re-sign him in light of his abuse of drugs, including crack cocaine ... TMZ has learned.

NBA sources tell TMZ, team officials really wanted to re-sign Lamar over the summer after he performed well last season, but he was nearly impossible to reach ... and they couldn't make progress on contract discussions.

We're told the Clippers were STILL interested despite Lamar's flaky behavior, but after news broke about the NBA star's issues with drug addiction ... the team closed the book on a new deal, permanently.

Khloe Kardashian has met with Lamar Odom ... and she is desperately trying to save his life -- TMZ has learned.

Sources familiar with the situation tell us, Khloe found Lamar and drove to see him at an undisclosed location.

As TMZ first reported ... Lamar has plunged into the dark world of crack cocaine and Khloe effectively separated from him after throwing him out of the house last Wednesday when he rejected a family intervention.

We're told Khloe has not given up on Lamar although she says she will never get back with him until he's clean. On the other hand, we've learned she has taken no steps to file for divorce because she believes there's still a chance Lamar can be saved.

We do not know how Lamar has received Khloe's latest plea.

Khloe Kardashian and Lamar Odom are separated, but neither has taken any step toward divorce ... sources tell TMZ.

Multiple sources familar with the situation tell us Khloe "effectively" declared separation when she threw Lamar out of the house Wednesday, after he refused her attempt at an intervention. TMZ broke the story ... Lamar has had a crack addiction problem for at least 2 years, and Khloe simply couldn't take it anymore.

We're told Khloe made it clear if Lamar did not get help -- the point of the intervention -- she wanted nothing to do with him anymore.

But we are also told neither Khloe nor Lamar has consulted a divorce lawyer ... at least not yet.

If and when they do file for divorce -- which we're told is likely -- there won't be much to fight over. Sources connected with the Kardashians tell us the couple signed a hard-fought prenup before they married.

We're told Kris Jenner was right in the middle of the prenup battle because she wanted to protect her daughter -- who tied the knot after a 4-week courtship.

Short story ... the fat lady hasn't sung yet, but she's warming up.

Khloe Kardashian kept Lamar Odom's crack addiction secret from her entire family for most of her marriage ... TMZ has learned.

Sources connected to the family tell us ... Khloe did not want to burden her family and jeopardize the Kardashian machine by telling the brood about Lamar's drug issues. We're told Kourtney and Kim Kardashian learned of Lamar's addiction "very recently."

We're told Kris Jenner has known about it for a longer period of time, but was still kept in the dark for many months.

Our sources say even when Khloe reached out for professional help -- for example hiring private investigators to follow Lamar -- she lied about the extent of the addiction. Our sources say Khloe told private investigators Lamar was addicted to "performance enhancing drugs" and that's why she needed their help. She never played the crack card.

When stories started to surface about Lamar sleeping with other women ... and the family started asking questions ... Khloe felt she needed to reveal the real issue. As one source put it, "Khloe was a real trooper. She's been living a nightmare."

The NBA is a "brotherhood" ... and its members will rally to support players like Lamar Odom through good times and bad ... so says Kevin Durant.

Durant was leaving DeMatha High School in Maryland after playing in a Goodman League charity game (he dropped 40 btw) ... when we asked about Odom, who's currently struggling with issues stemming from an addiction to crack cocaine.

Durant made it clear L.O. can count on his fellow players to have his back.

NBA superstar John Wall was also in attendance (though he didn't play in the game) ... and told us he's also rooting for Lamar.

"I just hope he figures it out. That's it."

Lamar Odom has vanished and everyone in his life fears the worst -- that he's off somewhere on a drug binge ... TMZ has learned.

Sources connected to the NBA star tell us people on Lamar's side, and on the Kardashian side have not been able to find Lamar or contact him for nearly 72 hours -- and we're told the main concern is he's hiding out while doing crack cocaine.

As TMZ first reported ... Khloe Kardashian threw him out of the house Wednesday after attempting an intervention which Lamar squarely rejected.

We've already told you Lamar's been battling addiction for at least 2 years -- and even reluctantly agreed to go to rehab in San Diego a year ago ... although he bailed after 3 weeks.

Our sources tell us Lamar has gone off the hinges since basketball season ended and he became a free agent.

We're told his drug addiction is the core reason why his marriage to Khloe has fallen apart.

Short story ... everyone's worried.

3:00 PM PST: We spoke to a rep for Lamar who says Lamar is fine, however he would not say anything about his whereabouts.

Lamar Odom has been deep into crack cocaine for at least 2 years ... TMZ has learned.

TMZ broke the story ... Lamar has gone off the rails with drug use ... which is the principal cause of the crisis in his marriage to Khloe Kardashian. As we reported Lamar went to a rehab facility a year ago this month and stayed for 3 weeks before bailing -- and we're told the problem was crack.

Sources say Lamar's crack use was extreme before he went to rehab, but he cleaned up his act during the basketball season that just ended. Sources say shortly after he hung up his jersey, he started again with a bang.

As we reported ... Khloe threw Lamar out of the house a few days ago after he rejected an attempt at an intervention.

It's unclear how Lamar's problem will affect his basketball career.

The marriage of Khloe Kardashian and Lamar Odom is in crisis, and TMZ has learned ... the core reason is hardcore drug abuse.

Multiple sources familiar with the situation tell TMZ ... Lamar has had a problem for 2 years. It got so bad, last August Khloe pressured Lamar to go to rehab. Lamar went to a facility in San Diego, but he was so resistant Khloe hired private investigators to secretly stand guard at the rehab place to make sure he didn't leave. The P.I.s stood guard 24/7.

Our sources say Lamar constantly threatened to leave and Khloe made several visits to prevail upon him to stay. We're told after 3 weeks, Lamar left for good.

We're told Lamar actually stayed clean once he left rehab and was able to play well for the Clippers this past season. But when the season was over, sources say Lamar slipped deep back into hardcore recreational drugs.

As for reports that Lamar was cheating recently, we're told Khloe is convinced it happened, and she feels she's been hit with a double whammy ... but drugs are the main problem.

As for divorce ... neither Khloe nor Lamar has contacted a lawyer. As one source put it, "Khloe is more concerned about saving Lamar than ending her marriage."

We're told the situation has become dire. Sources tell us ... within the last 2 days, the entire family staged an intervention, trying to convince Lamar to go back to rehab, but he wouldn't have any of it.

In fact, on Wednesday morning, right after the failed intervention, Khloe threw Lamar out of the house and as you see from the pic (above), one of Lamar's friends is loading Lamar's stuff in his car as Lamar watches.

Here she is for the first time ... the spawn of Kim Kardashian and Kanye West.

Kanye revealed the photo of baby North West on Kris Jenner's talk show moments ago, a last ditch effort to boost ratings before Fox decides whether to pick the show up for a full series ... something Kim's mother is desperately hoping for.

As we reported, Kim and Kanye had initially debated using the baby's first images to raise money for charity ... but they decided Kris' show was a more worthy cause.

Lamar Odom has just dodged a bullet -- he will NOT be prosecuted for trashing a photog's equipment ... TMZ has learned.

The L.A. City Attorney will not file criminal vandalism charges against Khloe's hubby for destroying a camera guy's equipment last month in Hollywood. Instead, as TMZ reported several days ago, the matter will be set for an informal hearing in the City Attorney's office.

The hearing is basically a sit down with both Lamar and the photog. The hearing office will explain the ground rules when there's a dispute between a celeb and the paparazzi. It's possible ... at the end of the hearing, Lamar could be ordered to attend anger management classes.

But short story ... victory for Lamar.

Kanye West left an innocent photog in crutches after a brutal assault at LAX last month -- when Kanye attempted to wrestle away the pap's camera -- so says the photog himself, and now he's filed a lawsuit against the rapper.

Daniel Ramos appeared with his lawyer Gloria Allred at a news conference Wednesday, where Gloria announced the lawsuit for assault, battery, and interference with Daniel's civil rights (in this case free speech).

Daniel -- who called himself a "filmmaker" -- says he spent two weeks on crutches after the attack, and has been walking with a cane for some time. He says he's still in pain.

Gloria argued the attack sets a dangerous precedent for celebrity-on-photog violence, especially now that various celebs are actually celebrating unprovoked attacks on photogs.

At one point, Gloria went after Kirstie Alley, Cher, and even Kylie Jenner for applauding Kanye's attack on Twitter.

Gloria says she's also asking the court to issue a restraining order against Kanye.