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Miley Cyrus ain’t exactly Hell’s Angels material … but she looked like a bad ass biker chick cruising through the mean streets of suburban Toluca Lake, CA on her sweet 3-wheel motorcycle.

As we reported ... the motorized tricycle was a gift from daddy ... Billy Ray dropped $24K on a 2013 Can Am Spyder with a customized paint job -- it's decorated with tiny M.C.'s all over it.

So long crazy F-cups ... Heidi Montag has unveiled her new C-cups after undergoing yet another breast-related medical procedure in October ... this time to REDUCE her breast size.

You'll recall, Montag famously underwent 10 plastic surgery procedures in one day back in 2010 -- including a mini brow lift, liposuction, buttock augmentation, Botox, a nose job, fat injections in her cheeks, nasolabial folds and lips, chin reduction, and increasing her breast size to F-cups.

Montag says she was young and "unstable" when she got the procedures ... and now warns other girls about making the same mistake.

Seems Charlie Sheen has a brand new girlfriend ... 'cause the Warlock was open-mouth kissing a hardcore porn star over Thanksgiving weekend ... and it looks like it was more than just a hookup.

The porn star on the receiving end is 24-year-old Brett Rossi -- star of such flicks as "She Loves My Big Breasts 2" and "Bondage Tongue Bath."

The two were spotted swapping spit in Cabo a few days ago. We're told they met in L.A. last month and Charlie took her to Mexico to celebrate Thanksgiving with a few other friends.

Rossi's the classy kind of porn star too -- as far as we can tell, she doesn't really do hardcore male-female sex scenes ... mostly just solo and girl-girl stuff with the likes of Twistys and Penthouse.

As for the other women in Charlie's life -- you know, the three "Angels" he's dating -- we're told Charlie's still with them, too.

The more, the merrier.

This is the dramatic moment when a cop had to physically wrestle one of Paul Walker's friends away from the crash scene ... seconds after it became clear Paul could not be saved.

TMZ broke the story ... Paul's friends rushed to the scene -- one even grabbed a fire extinguisher and desperately tried to extinguish the flames.

When the fire dept. arrived they tried to pull Paul's friends away. One of Paul's longtime friends, a guy named Nute, was so overwrought with emotion, he punched a firefighter. We're told Sheriff's deputies put Nute -- and several other of Paul's friends -- in custody, but let them go when they realized the circumstances.

Cops now believe Paul and the driver of the Porsche may have been in a street race with another car at the time of the crash and are looking for footage and witnesses.

Max George's girlfriend is truly a multi-tasker ... she can PDA and pick the thong out of her ass AT THE SAME TIME!!!!

Max -- the guy from The Wanted who once banged Lindsay Lohan -- took his hot model GF Nina Agdal to a beach vacation in the Bahamas ... where they galavanted around with their ridiculously attractive tan bodies.

They spearfished ... they yachted ... they boozed -- and most importantly, they documented almost the entire thing on camera so everyone could follow their half-naked vacay.

Sharing is caring.

Paul Walker fans have been heading to Valencia, CA in droves ... building out a massive vigil for the actor on the spot where he died.

Fans began to gather literally hours after the fatal crash on Saturday evening ... and by Sunday night, the memorial had grown exponentially ... with hundreds of flowers, candles, photos trinkets and letters.

As we previously reported, Walker's "Fast and the Furious" co-star Tyrese Gibson visited the crash scene yesterday ... and broke down crying when he arrived.

Paul Walker's daughter does NOT have a public social media page ... and his reps have already shut down one site run by an impostor.

Multiple news outlets posted stories Sunday morning saying Paul's 15-year-old Meadow Walker -- pictured above with her dad back in June -- paid tribute the actor on her Facebook page after the crash ... only problem, it's run by a fake.

Moments before Paul Walker took what turned out to be a fatal ride -- he posed proudly next to the exotic car that exploded on impact in the deadly accident.

Paul was photographed with the red 2005 Porsche Carrera GT that belonged to his friend Roger Rodas. They were attending a fundraiser in Santa Clarita, CA.

We're told the photos and video were taken about 30 minutes before the accident.

As TMZ first reported ... Paul had put together the charitable event -- through his Reach Out Worldwide organization -- to support typhoon relief efforts in the Philippines.

Paul was the passenger in the Porsche when Rodas lost control and slammed into a tree. The car exploded, and the Sheriff's Department says speed was a factor.

Arnold Schwarzennegger's 16-year old son Chris is no longer an adorable little kid ... he's a BEAST who looks very much like he could kick the crap out of you.

Chris Schwarzenegger and his mom Maria Shriver were cruising around Santa Monica over the holiday weekend... and the famous kid has clearly packed on a ton of muscle and TOWERS over his mom.

As you might recall ... Arnold's love child Joseph Baena turned 16 in October and also bears a striking resemblance to his beefed up dad.

So we gotta ask ...

"Basketball Wives" star Evelyn Lozada isn't just pregnant ... she's bursting ... and we got photos of the enormous baby bump.

The pics were snapped yesterday in Hawaii -- where Evelyn hit the beach with her 20-year-old daughter Shaniece -- and there's no denying ... Evelyn's got one big bun in the oven.

Kanye West celebrated Thanksgiving yesterday in Miami with his fiancee Kim Kardashian.

Now here's a complete list of things Kanye West is thankful for:

1) Kanye West

A guy selling a Lexus on eBay is banking on you paying more because Leo DiCaprio cavorted with Gisele Bundchen and other models in the whip.

A guy named Brian bought the 1999 Lexus GS 400 at a dealership. The paperwork showed Leo was the prior owner who turned it in after the lease expired.

Brian bought the car in 2001 with 18,000 miles. He's selling it today with 148,091 miles, and you can buy it now for $20,000.

So how can he command such a price? Brian tells TMZ ... the former service manager at the Beverly Hills dealership told him Gisele was a passenger in the car several times when Leo dropped it off for service.

In other words ... sniffing the seat comes at a premium.

Here's the bad news for Brian ... The stale scent of a woman doesn't command lots of cents -- top bid so far is $5,000.

Justin Bieber sucks on a surfboard -- and one of his bodyguards harassed a real surfer into erasing his photo evidence of JB going all barney in Australia ... this according to the surfer.

The local surfer dude, Kes Weartherm, tells us he was catching waves in Byron Bay on Wednesday ... when Bieber and his entourage rolled up with surf instructors.

Kes says he snapped a pic of Bieber trying to get up -- but a bodyguard immediately ran over, flipped out, and wrestled the phone from his hand.

According to Kes ... locals came to back him up, and forced the guy to return the phone.

Kes was pissed, but says he decided to delete the pic anyway because the bodyguard kept whining. No one was injured, and no cops were called.

Funny thing is ... plenty of other photogs on the beach took pics -- including the one above -- and even Bieber posted a shot of himself wiping out.

Do as Yeezy says, not as Yeezy does -- because Kanye West and Kim Kardashian were traipsing around NYC with a bunch of Louis Vuitton bags last night ... just one day after the rapper called for a boycott on the designer label.

As we reported, Ye went on a New York radio station Monday and ordered NYC not to purchase LV until after January ... because he's pissed the label head refused to meet with him in Paris recently.

But last night, even Kanye couldn't resist Louis' supple leather ... meandering around NYC while faithful handlers lugged his and Kim's LV bags.

Caught up in the moment, right? 'Cause it's Louis Vuitton Don night.

JT channeled a little MJ during his show in L.A. last night -- busting out one of Michael's greatest hits ... and the crowd went wild.

Timberlake kicked off the Western leg of "The 20/20 Experience" tour at Staples Center on Tuesday ... and played a bunch of his own hits -- including "My Love," "Holy Grail" and "Sexy Back."

Then he turned to Michael Jackson ... and covered "Human Nature." Check out the clip.

Justin's show was packed with huge celebs -- including Matt Damon, Amy Adams ... and JT's old boyband mate Lance Bass (who had a special "friends and family" VIP pass).

As for JC, Joey or the other one ... so far, it's unclear if they were there too.

Fire up the flux capacitor -- It's been nearly 30 years since the first "Back to the Future" movie hit the big screen ... but Michael J. Fox and co-star Christopher Lloyd are still going strong.

Lloyd and Fox re-joined forces today in NYC while on the set of "The Michael J. Fox Show." Lloyd is set to appear in a cameo role ... but nothing will ever rival his timeless work as Dr. Emmett Brown.

FYI, Lloyd is now 75 years old.

GREAT SCOTT!!!