Josh Brolin All Smiles Despite Divorce Filing

5:00 PM PT -- Sources tell us ... the woman in the photo is only Josh's (hot) assistant.

Josh Brolin doesn't seem too crushed in the wake of his impending divorce from Diane Lane -- stepping out in L.A. earlier today with a beautiful mystery girl ... sporting his trademark squinty smirk thing.

TMZ broke the story ... Lane filed for divorce from Brolin on February 15th -- the day after Valentine's Day -- citing "irreconcilable differences."

Lane listed the legal date of separation as February 13th but we know Lane claims they've actually been separated longer.

Diane wants to restore her last name to just "Lane."

Adrienne Maloof I Paid $25k to Make Out with Mario Lopez

Adrienne Maloof has no problem landing men -- but last night in Los Angeles, she paid $25,000 for a makeout session with Mario Lopez ... and it was all for a good cause.

Maloof and Lopez were part of the Have a Heart Auction in Honor of Zeke (HelpZeke.com) ... an event to raise money for Zeke Kendall, a 20-year-old man who underwent heart transplant surgery last month.

The auction -- held at Mixology at The Grove -- featured a red dress from the Kim Kardashian collection (worn by Kim herself) and a signed Charlie Sheen jersey from the movie "Major League" (see below).

"Extra" co-host Maria Menounos put herself -- along with Jaime Pressley and Jane Seymour -- on the auction block … and some lucky guy got to kiss all three of them … with a winning bid of $30,000.

But "Real Housewives of Beverly Hills" star (for now) Adrienne Maloof saved her money for the chance to lay one on the hunky Lopez ... forking over 25 large in the process.

Maloof either has a huge heart or she's a huge fan of "Saved by the Bell" ... or both.

Gretzky's Daughter's Boobs Breakaway Outside L.A. Nightclub

Good thing body checking's legal in hockey ... because Wayne Gretzky's smoking hot daughter Paulina showed off her overflowing bosom last night in L.A. ... and everyone was looking.

24-year-old Paulina's breasts made their appearance at Bootsy Bellows nightclub -- somehow strapped inside a tiny red dress.

Remind us ... what's the penalty for high-sticking?

Steven Spielberg Welcome ... TO JURASSIC YACHT!

Steven Spielberg doesn't do anything low budget ... especially when it comes to boating ... 'cause his private yacht is FRICKIN' ENORMOUS!!!

The Oscar winning director's $200 MILLION ocean vessel was spotted in Fort Lauderdale this week ... dwarfing everything else in the water.

The ridiculous craft -- named the Seven Seas -- comes loaded with amazing features like an infinity pool, 15-foot movie screen, gym, spa and even a helipad.

Plus, it sleeps 12 guests and 26 crew members and can reportedly be rented out for $1.3 million per week.

Fun Fact -- the yacht measures 282 feet in length ... so, you probably won't need a bigger boat after all.

Colin Kaepernick BODY SHOTS With Hot Bikini Chicks

Know why it doesn't suck to be the quarterback who lost the Super Bowl? Because hot girls will drink alcohol out of your belly button no matter what.

The photos just surfaced ... showing 49ers QB Colin Kaepernick partying on board a cruise ship in Mexico last year ... letting girls do body shots off his six pack ... and they're so awesome, we couldn't resist posting them.

More impressive ... the pics were shot BEFORE Colin replaced starting QB Alex Smith.

One less teammate for Chris Culliver to worry about ...

Jamie Lynn Sigler & Fetus Date Night with Lenny Dykstra's Son

With her baby bump under wraps, former "Sopranos" star Jamie Lynn Sigler left a dinner date in L.A. last night with the man responsible for her fetus ... Lenny Dykstra's son Cutter.

The 31-year-old actress just announced the pregnancy last week -- and confirmed the kid belongs to her 23-year-old fiance, who's a minor league baseball player.

Cutter Dykstra -- who was drafted in 2008 -- was clutching some cash on his way out of Craig's ... which is a good sign, considering there were rumors that his financial disaster of a father stole his $700,000 signing bonus. Cutter has previously claimed the rumors were completely false.

Still, who ya think paid for dinner?

Hayden Panettiere Banging Ex-BF We Have Proof (Kind Of)

Hayden Panettiere is soooo banging her ex-boyfriend Wladimir Klitschko -- just like we predicted weeks ago -- and TMZ finally has the rock-solid proof we've been waiting for ... sort of.

You'll recall, we talked to Hayden back in January at LAX -- where she insisted she and the 6'6" Ukrainian boxing champ were "just good buddies." But we had a hunch it was MUCH more than that.

And now we have the PROOF (kind of) ... because photos were snapped yesterday in Hollywood, Florida ... where the probably-back-together couple was seen cuddling on a couch at Taco Beach Shack.

Specifically in the pics ... Hayden is all smiles (and lookin' super hot) while holding Wlad's hand ... his arm is wrapped tightly around her body ... and there's obvious sexual tension.

Only logical conclusion ... it's on like Donkey Kong. Sorry Scotty.

Katherine Webb Great Googly Moogly

"Splash" -- formerly known as "Celebrity Diving" -- seems like just another reality TV show ... until you see Katherine Webb in a bathing suit.

The former Miss Alabama USA -- famous for her cameo at the BCS National Championship this year -- donned the magenta monokini earlier today while filming a show segment in L.A..

For some reason, there are other people on the show too.

Britney Spears The Grocery List Tells Me What to Do

Rockin' her best Kate Gosselin soccer mom chic, Britney Spears didn't need a conservator when she hit up a Los Angeles supermarket this weekend ... because she had a grocery list to help her remember what she needs, y'all.

Included in the 31-year-old mother of two's list were: ginger ale, tomatoes, Lunchables, ham, orange juice, 2% milk, Smart popcorn, bread and chicken.

While Cheetos and Tang were strangely absent, it's probably safe to say Britney can remember to pick those items up without having to write them down.

Britney Spears Reps Duck and Cover Over Mystery VDay Date

It's a mystery wrapped in a riddle inside an enigma -- who did Britney Spears go out to dinner with on Valentine's Day? The even bigger mystery ... why are Britney's reps so secretive about it?

The photos of Britney and John Doe #1 surfaced late last week and TMZ reached out to Britney's reps multiple times over the course of 3 days -- asking a simple question ... who's the dude?

Each time, we were told they were trying to figure it out and would get back to us.

After 8 calls ... we're starting to think they don't want to tell us ... so we're turning to you. If you have any information as to the true identity of Doe #1, please contact TMZ immediately.

There's no reward ... ok, if you're the first to ID him, maybe we'll send you a TMZ t-shirt. Maybe.

Rihanna Bloodied After Alleged London Club Run-in

Rihanna capped off a night of partying in London with a bloodied knee after someone allegedly threw a bottle in her direction ... and screamed things at her about Chris Brown.

According to reports, RiRi was leaving a club called The Box when someone threw a bottle of Lucozade (a UK energy drink) in her direction. The bottle didn't connect, but Rihanna allegedly scraped her knee during the commotion when she brushed up against a metal shop grate.

Rihanna was in town for London Fashion Week.

We reached out to a rep for RiRi -- so far, no word back.

Katy Perry & John Mayer Valentine's Day ... A Good Day to Die Hard

John Mayer might just be the luckiest guy on the planet -- because he spent his Valentine's Day alone in a dark room with Katy Perry ... and more importantly, Katy Perry's boobs.

J & K celebrated the holiday of love last night by hitting up the historic Vista Theatre in East Hollywood -- and the photographer who shot the pics tells us, he didn't see a soul enter or leave the theater the entire time they were in there ... roughly two hours.

The theater wouldn't comment on whether John and Katy rented the place out for their own personal use -- but that's the only logical conclusion. Pretty baller.

"A Good Day to Die Hard" is the only movie currently playing at Vista ... but it's unclear if that's what the couple actually watched ... because Katy was spotted leaving the place holding a DVD.

Probably "The Notebook."

Louie Anderson The Great White Hope of Diving Shows

Comedian Louie Anderson is training for one of those new celebrity diving shows -- along with the likes of super babe Katherine Webb and NFL star Ndamukong Suh -- but everyone else just pales in comparison.

The 59-year-old showed off his pearly white wet dewy flesh after performing a big dive in L.A. on Thursday.

Things haven't exactly been going swimmingly for the comic -- he had to be pulled out of the water a few weeks ago after a mishap in the pool.

67-Year-Old Steve Martin Shaping Up For My Newborn Baby

Hoping to stay alive long enough to see his newborn kid graduate elementary school, 67-year-old Steve Martin worked on his fitness by hitting the road on his workout bike this week.

Martin's rep just confirmed that the actor's 41-year-old wife Anne Stringfield gave birth to their first child back in December ... but the couple hasn't revealed the sex or name of the child.

Whether it's a son or daughter, he's now working out for two.

Miss America Mallory Hagan Stomaching Life After the Pageant

It's only been one month since Mallory Hagan won the title of Miss America 2013 ... after KILLING IT in the swimsuit competition ... and it appears she's back to eating like a normal human being again.

24-year-old Hagan was spotted rocking a pink bikini in Hawaii yesterday ... still looking incredible ... with a little more to love.

Sometimes ya just gotta let loose.

Will Ferrell They Call Me 'Ted Vagina'

Will Ferrell is a Vagina ... Ted Vagina, to be exact ... at least according to the name tag he wore at the Lakers game last night.

Ferrell -- sporting a nicely manicured moustache -- threw on a Staples Center usher uniform (complete with the Vagina name tag) ... and went to work on the court ... keeping the floor safe from basketball hooligans.

At one point, Ted put Shaquille O'Neal in an arm bar -- and escorted the big guy off the court.

Vagina always gets his man.