Stacy Keibler WEEKEND AT BURNING MAN No Clooney? No Problem.

Just two months after her split from George Clooney, Stacy Keibler trekked into the scorching Nevada desert for the Burning Man festival ... in a very tiny outfit.

FYI -- Burning Man is essentially a massive art festival in the middle of the desert which focuses on "radical self expression and self-reliance."

Translation -- Lots of drugs. Lots of sex. Lots of hippies.

As for Keibler, she attended the event with her rumored boyfriend Jared Pobre (a tech entrepreneur) and documented her experience on Twitter -- including her stop at something called the "Hug Deli."

It's unclear what Stacy ordered from the Hug Deli, there were so many options (warm + fuzzy hug, bear hug, gangsta hug) ... but we know she didn't pay for it in cash -- the entire festival is based on a barter economy.

So, what did Keibler have to offer? We can think of a few things ...

Hayden Panettiere Incredible Ass In Incredible Bikini

Here's Hayden Panettiere during a beach weekend in Miami with her fiance Wladimir Klitschko.

Mr. Pacino, your thoughts?

Dina Lohan Parties Like a Drunken Sailor!

Dina Lohan may not have encountered 15 men on a dead man's chest at a Labor Day party, but it sure looks like she found that bottle of rum.

Dina, who played Tennille to a very eccentric Captain -- millionaire Sir Ivan Wilzig -- partied Sunday at Ivan's estate ... which people call the Playboy Mansion of the East Coast.

Several party-goers tell TMZ ... Dina went full bore, slurring her speech and at times zoning out, as she bragged that Oprah was interviewing her today for the Lindsay Lohan docu-soap.

We're told Dina was telling people at the party -- billed as "Sailors and Sinner Soiree" -- she was a good mother. She also said there was nothing ever wrong with Lindsay.

Even Lindsay doesn't believe that anymore.

Alessandra Ambrosio For Your Hard Labor ... Here's My Beautiful Ass

Today is Labor Day ... a time to honor the hard work and dedication of our labor force, and no one is workin' it harder than Alessandra Ambrosio -- and her perfectly sculpted ass.

You're welcome America.

Redfoo Packing ... Down Under

No offense to LMFAO frontman Redfoo -- but turns out the tiny mankini he's sporting, and its cargo, have a lot in common with a tiny bird.

Budgie ... it's Australian for penis!

Redfoo I'm In a Mankini ... B*tch!

With his junk firmly tucked into a snug mankini, LMFAO frontman Redfoo ran around the beach in Australia this week ... in search of ... pants, maybe?

According to photographers on the scene, Red also knocked out some yoga on Bondi Beach while shooting a new ad for his clothing line.

Fun Fact -- In Australia, mankinis are referred to as "budgie smugglers."

... and now you know.

Justin Bieber His Shirtless Disease Is Spreading

It's worse than the plague ... Justin Bieber's shirtlessness has now spread to his best friends, and chances of survival are slim.

Bieber's pal Lil Twist -- the guy wearing the Jamiroquai hat -- posted the photo on Instagram yesterday, showing just how bad the pandemic has gotten.

We've spoken to several experts who say it's only a matter of time before it spreads to unsuspecting non-douchebags across the country. Board up your windows.

FYI, the photo is also significant because it shows Lil Twist and Bieber are back on good terms after Twist was accused of battering some girl at Bieber's pad earlier this month ... but who cares!!! THIS IS A MEDICAL EMERGENCY!!!

'Baywatch' Star German Fanatic is Threatening Me and My Husband

Germany's fascination with all things David Hasselhoff is blowing up in the face of another "Baywatch" star ... who just got a restraining order against a woman she says has been tailing her all over town.

Alexandra Paul, who played Stephanie Holden on "Baywatch", filed docs claiming Nicole Albrecht -- a German citizen -- is infatuated with her and the situation's been escalating for months ... including the following alleged incidents:

- Albrecht and her family show up uninvited to Paul's house and leave gifts and a note.

- Albrecht trailed Paul into a bathroom at her Pacific Palisades community pool ... and also appeared to chase Paul on foot during a hike.

- Albrecht waited for Paul in the parking garage of her gym and grabbed her ... until a manager at the gym intervened.

In the docs, AP goes all "Snatch" -- blaming "Zee Germans" for Albrecht's obsession, saying ... "This woman, Nicole, is from Germany and Baywatch is extremely popular there."

The court granted Alexandra a Temporary Restraining Order on Thursday which requires Albrecht to stay 25 feet away from AP and her husband.

A hearing is set for Sept. 12th to determine whether to extend the protection.

FUN FACT: Alexandra and her husband, Ian Murray, are both badass triathletes ... as in "Ironman" competitors.

Pippi Longstocking Sex Tape Will NEVER See the Light of Day

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Tami Erin -- the actress who played Pippi Longstocking in the 1988 movie -- insists she had nothing to do with her sex tape being shopped around town ... in fact, she tells TMZ Live, she'll stop at nothing to make sure it NEVER gets released.

39-year-old Erin called in moments ago and she was irate -- blaming a bitter ex-boyfriend for attempting to sell a private hardcore sex tape to the media.

She said, "I think he's the biggest piece of sh*t on the planet for doing this to me."

As for any sex tape deal, Erin says she has not been approached about selling the tape, which is good ... because in order for a company to release this kind of footage, it would need Erin's permission.

She sounds really angry ... and we're not calling BS ... but we do want to point out that Erin's not exactly averse to public displays of sexuality, posting photos like these on Twitter over the last couple months. Nice bod.

Joe Rogan I'M JACKED

Soooo ... Joe Rogan works out.

The UFC announcer went shirt-off at the beach in Hawaii this weekend ... proving Carrot Top ain't the only comic who knows his way around the weight room.

Fun Fact -- Rogan also happens to be a black belt in Brazilian jiu-jitsu ... which is why we're immediately issuing the following apology for comparing him to Carrot Top.

Sorry Joe.

Lady Gaga ASS ON PARADE for Joseph Gordon-Levitt

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Didn't get a good view of Lady Gaga's incredibly hot thong outfit at the MTV VMAs last night? Well you're in luck ... here's a 30-second unobstructed view of Gaga's glorious ass while she flirted with Joseph Gordon-Levitt.

We have no idea what JGL is saying, but we'd be grinning too if we were standing next to Gaga's pretty-much-naked body. She even does a flirty twirl for the actor before giving him a hug and going back to her seat.

You're welcome.

Gaga vs. Miley Who'd You Rather?

Lady Gaga and Miley Cyrus gyrated, thrusted and she-humped the hell out of the backup dancers at the MTV VMAs last night.

Question is ...

Taylor Swift Grinds On Jennifer Lopez During Concert

Taylor Swift + Jennifer Lopez's ass + songs from 2002 = CONCERT GOLD.

It all went down at Taylor's concert in L.A. Saturday night. The pretty-straight-laced singer has been inviting a slew of guests to perform with her on tour: Sara Bareilles, Ellie Goulding, Tegan and Sara ... acts that fit the Taylor mold.

But Saturday she threw that out the window and brought out Jennifer Lopez instead to sing "Jenny From the Block" as a duet ... and even tried to rock some fly girl moves.

FYI Taylor fans: fly girls were dancers on "In Living Color." You probably weren't born yet.

Eva Longoria Back on the Market ... For Now

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Eva Longoria is right where every guy wants her to be ... splitsville, baby! Sure, her ex probably isn't as happy about it, but he had his shot.

Next!

Kate Beckinsale Mexican Bikini Fiesta

Dear Mexican drug cartels,

Here is Kate Beckinsale ... in a bikini ... in Mexico.

Please don't behead her.

Gracias.

Eva Longoria Single Again!!!

Good news, single heterosexual men and/or lesbians: Eva Longoria (the sexiest 38-year-old woman on Earth) is now officially single.

Sources tell TMZ, the former "Desperate Housewives" star split from boyfriend Ernesto Arguello this week after dating for roughly 4 months.

The two met while Longoria was producing her dating show "Ready for Love." Ernesto was a bachelor on the program, but after the show went off the air, Eva decided to take Ernesto for herself.

Eva and Ernesto were spotted canoodling in Spain as recently as two weeks ago (above), but once they got back to L.A., we're told they decided their busy lifestyles just didn't mesh.

Eva spends most of her time in L.A., and Ernesto is situated primarily in Miami, so they decided it would be better to split. But some sources aren't convinced it's completely over -- as one source put it, "They're just on hold right now."

Translation: if you want to scoop Eva up, you better act fast.