Cameron Diaz Robin Thicke'd on the Red Carpet

Leslie Mann went full Robin Thicke on Cameron Diaz last night ... grabbing a handful of booty at the London premiere of their new movie "The Other Woman."

No disrespect to Cameron, but with Kate Upton standing just two feet away ... Leslie made a poor choice.

'McSteamy' Eric Dane Grays Anatomy

Move over Anderson Cooper -- "Grey's Anatomy" star Eric Dane (aka McSteamy) upped his silver fox game to a new level this week in Mexico -- rocking the hair of a man twice his age ... and the body of a man half his age.

41-year-old Dane and his 42-year-old wife Rebecca Gayheart were photographed as a twosome Tuesday -- looking hot in their pool gear -- and Dane's hair is whiter than ever.

It's true ... age really is just a number.

'Big Brother' Star I Wanna Do Playboy!!!

"Big Brother" star GinaMarie Zimmerman is certainly at home in front of the cameras, and now she wants to pose naked for them ... Playboy's cameras, to be exact.

The former pageant coordinator -- who was famously booted from her job after her racist comments on the show -- tells TMZ her new goal is to be in Playboy. Zimmerman says all her friends feel she's too old to do it, but she's determined to make it.

She tells us, "People tell me I'm too old to do a lot of things ... I'm a huge fan of Playboy and a collector. So I took these pictures on my own to show people you can do anything no matter what age."

Check out the pics, then decide for yourself ...

Gerard Butler Looking '300' Again

Gerard Butler looks ready to do battle with Xerxes again, flashing his buff bod on Sydney's Bondi Beach yesterday.

THIS ... IS ... Atkins? Jenny Craig? More gym, less lunch?

Michelle & Cara Sun, Surf and ... Sucking Face

Michelle Rodriguez and Cara Delevingne had a full-on make out session in Cancun, and they get major bonus points for doing it ... TOPLESS.

Dude ... real life "Wild Things" -- without the murders and stuff.

Cara D & Michelle Rodriguez TOPLESS MAKEOUT On the Beach

FINALLY!!! Hard undeniable proof Michelle Rodriguez and supermodel Cara Delevingne are banging each other -- unbelievable video footage of Michelle making out with a topless Cara in the ocean ... A TOPLESS CARA ... IN THE OCEAN.

35-year-old Michelle and 21-year-old Cara were vacationing together in Cancun last week -- and Cara took things to a whole new level, leaving her bikini top on the beach ... while she and Michelle canoodled in the water.

It's better than anything we ever could have hoped for.

GG & Joanna Krupa Meeting of the ... Minds?

"Shahs of Sunset" star Golnesa "GG" Gharachedaghi went out to Mr. Chow in Beverly Hills last night with "Real Housewives of Miami" star Joanna Krupa where they presumably discussed ...

... ooh look, a shiny object!

Terrell Owens' Wife Yes, Those Are My Nude Pics ... But Only T.O. Had Them

Nude pics of Terrell Owens' estranged wife have popped up on the Internet ... and she's hinting that T.O. may be responsible for leaking them.

The photos of Rachel Snider hit Twitter today showing the ex-postal worker posing for bathroom selfies ... some topless, some bottomless ... and some that look like they're straight out of Hustler.

Gotta say ... some of 'em do make ya think T.O. should try to patch things up.

Snider confirmed the pics are definitely her, but adds they were taken for T.O. ... and intended for his eyes only.

Translation: she thinks he could be connected to the the Twitter handle sending out the pics.

Rachel says she's contacted Twitter HQ to report the user behind the x-rated tweets, but so far they're still up.

T.O.'s rep hasn't responded to our calls for comment.

2:40 PM PT -- Rachel's pics are down ... Twitter shut down the account.

Riff Raff Don't Let This Girl's Ass Fool You I'm Kinda Dating Katy Perry

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Katy Perry's got an unlikely new BF -- rapper Riff Raff -- at least that's on Riff Raff's wish list ... because he's SMITTEN after the two went on a date last week ... despite his obvious addiction to other women in thong bikinis.

Raff was out in Miami Tuesday when we asked about his date with the "Dark Horse" singer -- Raff says he took Katy out for the Holy Trinity ... sushi, bowling, and drinks ... and he had a blast.

If Katy's down -- Raff says he'd love to see her again ... maybe next week when she's back in the country.

We're a little surprised though -- Katy's a busty woman ... and from this clip, it's pretty clear Raff's an ass man. You gotta see it.

Britney Spears Fashion Renegade

Some people glam it up for a trip to LAX, knowing paparazzi will be there ready to snap their photo.

Britney Spears is not one of those people.

It's her prerogative.

Scott Disick Big Disick

Scott Disick threw caution to the wind and gave Jon Hamm a run for his free-flowing money as he went out on a grocery run yesterday in Calabasas.

He's a real baller.

Megan Fox I'm Already Skinny After Just Having a Baby

Don't expect Megan Fox to wear mom jeans after popping out another kid last month ... because she already lost all the baby weight -- in 5 freaking weeks!

Fox ran some errands Friday in Los Angeles with her other son Noah -- after giving birth to Bodhi Ransom in February -- and one thing is clear, girl was looking GOOD.

Congrats ... to the dads in her "Mommy and Me" classes.

Madonna Me Against the Razor

Madonna continued her campaign to remain relevant by posting a disgusting photo of her unshaven armpit on Instagram.

The photo was captioned: "Long hair...... Don't Care!!!!!! #artforfreedom #rebelheart #revolutionoflove"

#DesperateForAttention

Cristiano Ronaldo and Irina Shayk Matching Tight Pants

Soccer superstar Cristiano Ronaldo and model GF Irina Shayk both showed up to a European basketball game last night wearing skin-hugging pants.

As far as celebrity couples go, these two are clearly tight.

NFL Stars THONG HUNTIN' ... On Australia Beach

SF 49ers star Patrick Willis knows what he likes ... CHICKS IN THONGS ... and he went after it hard on a beach vacation to Australia.

Willis -- along with former NFL linebackers Takeo Spikes and Carlos Emmons -- are on a boys trip Down Under and decided to go searchin' for ass on Bondi Beach.

Good news -- they found it.

While Willis was able to pull off the 2-on-1 all by himself, Spikes and Emmons teamed up to chat up two other thong'd up ladies who were catchin' some rays.

Three defensive guys -- think any of 'em scored?

South American Models Crack Research Into Ass Tanning Habits

Every winter birds fly south and smoking hot models -- like Paz Cornu and Karina Jelinek -- fly north to Miami Beach to tan every last inch of their bodies ... asses AND ass cracks included.

See, winter ain't so bad after all.