Lady Gaga Naked or Covered Up ... I'm a Perfect Illusion

Lady Gaga went from sexy beach photo shoot to a wet dress contest in the blink of a wave -- and she didn't have much on underneath.

Gaga had several wardrobe changes in the sand Wednesday in the 'Bu -- going from French dominatrix to sea nymph ... with her ass on full display much of the time.

Not to worry ... when the waves crashed, Gaga had several people waiting on her hand and foot. To the photog who also got dunked, we say ... thongs for the perfect shots!

Leonardo DiCaprio Smokin' Aces with Scott Eastwood

Leonardo DiCaprio's new wingman is Scott Eastwood, at least when it comes to summer beach volleyball. Hide your eyes, Tobey Maguire.

The actors got some action in the sand Sunday in Malibu, and looks like the match was going their way -- a lot of bro-in' down between serves.

Leo's been getting tons of v-ball practice lately. We saw him dishing at a Fourth of July party while co-hosting with Sean Penn. Leo went at it again a couple weeks later ... going up against Ansel Elgort.

One thing we've noticed about Leo is, for whatever reason, he prefers keeping on his white tees while others in the game opt for skins. Hard to blame him, Eastwood's 11 years younger, and well ... look at him.

Hey, they've both got game.

Maria Sharapova Full-Blown PD-Ass ... BF Gets a Mouthful!!!

Maria Sharapova's professional season might be winding down, but her boyfriend is kicking off ass-eatin' season ... in a big way!

The Russian tennis star was lounging in a bikini Sunday in Positano, alongside her millionaire bf, Alexander Gilkes, who decided to order lunch OFF-menu. For some reason, Alex got a face full of Maria's butt.

He was also pretty handsy with the booty -- so, there's little question to what he sees in Maria. Check out the pics, though ... she was stuck on her phone the whole time he was going to work back there.

We'd say she's gonna give the guy a complex, but looks like it's all love, baby.

YesJulz Smokin' ... In More Ways Than 1

Suns out, buns out ... never has that been truer then when Snapchat queen-turned singer YesJulz hit the sand in a thong bikini.

Julz, who runs the music label 1 AM Entertainment, lit one up during a relaxing day at Escondido Beach in Malibu ... alongside pal and "The Last Ship" actress Jodie Turner-Smith.

Julz wasn't the only one getting high ... so was the tide, which nearly took her down. Don't worry ... Jodie was there to pull her up.

BTW ... you can't light up in public at the beach, but who's gonna bust her anyway?

P.O.V. Bikini Selfies Guess Who!

These sexy stars have reinvented the traditional selfie and given us a view all their own!

Sneak a peek of the sizzlin’ summer pics by sliding into our gallery of P.O.V. bikini selfies, and see if you can guess the babe showing off her rockin’ bod!

It's all about angles!

Margot Robbie The Perfect Wave

Actress Margot Robbie's no longer skating on ice, she's down in Costa Rica taking in some surf ... and pretty good at it.

The "I, Tonya" star and her hubby, Tom Ackerley, caught a party wave during a late afternoon surfing session. She looked like a pro on her longboard ... then again, she's Australian so surfing is basically in her blood.

Afterwards they headed into shore for happy hour and the sunset where Margot blended in with the other beach folk, gave a solid "cheers" and did a hang ten onto her man's arm.

Margot could be taking a quick break before kicking it into high gear again. She's got a ton of upcoming projects including "Suicide Squad 2," "Gotham City Sirens" and "Marian."

Tom Brady Shirtless Beach Games While Gisele Works

While the Gisele's away, the Bradys will play ... beach soccer, and superdad Tom Brady clearly doesn't care what you say about his dad bod.

Tom and fam are still down in Costa Rica for their annual offseason vacay, but Gisele's actually getting some work done too. While she was doing a photo shoot, Tom was at the beach with his 3 kids.

There was a little ocean swimming, a little futbol and Tom swinging little Vivian around -- y'know, typical OTA-type stuff for the Patriots G.O.A.T.

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KICKIN' IT
BACKGRID

Don't feel bad for Gisele ... she seemed to be having fun splashing around at her modeling shoot -- and Tom eventually showed up for moral support.

BTW, Pats camp kicks off next Thursday -- so, just a few summer days left before TB12's bod gets NFL-ready.

Who are we kidding ... he could win a Super Bowl today.

Lionel Messi Yachting Away the Pain ... After World Cup Loss

Lionel Messi has found a pretty good way to get over Argentina's disastrous World Cup exit ... load up your smokeshow wife on a yacht and float on over to Ibiza.

Messi rounded up his fam -- including Antonella Roccuzzo -- for an expensive and relaxing boat trip.

Of course, Messi's Argentina squad got bounced from the World Cup in late June after a pretty pathetic performance ... though he did score one of the most impressive goals of the tourney.

So, what next?

At 31 years old, it's possible the 2018 World Cup may have been his last ... but, he's made so much money playing soccer, he can float around on yachts for the rest of his life.

Danielle Knudson 29 and Fine With or Without BF

Danielle Knudson doesn't need her man to ring in her 29th, she's doing juuuust fine all by herself ... as you can clearly see in these pics.

The Canadian model celebrated her born day Tuesday in Miami Beach -- where she was barely covered up by a bikini that showed off her amazing body. No sign of her latest BF -- Brazilian soccer star Alexandre Pato -- at the beach party. If he's smart, though, he wasn't far away.

Sometimes, birthday cake is a dish best served ... to you and your girls.

Blake Griffin's GF Smothers NBA Star In Tiny Bathing Suit

Blake Griffin was living the life in Miami over the weekend ... where his smokeshow girlfriend, Francesca Aiello, turned every single head on the beach ... for obvious reasons.

Blake and Francesca -- who owns Frankies Bikinis -- have been super tight over the last few months ... ever since the NBA star broke things off with Kendall Jenner.

The two took things to a private cabana in Miami Beach on Sunday with a group of friends -- where they packed on the PDA ... including a few moments where she laid right on top of him.

Good times.

Blake is now in Los Angeles for the ESPYs ... you know they have beaches here too?!

Tom Brady G.O.A.T. BOD on Beach Vacay w/ Gisele

Here's Tom Brady on vacation with his family in Costa Rica ... proving you don't have to be ripped to shreds to be one of the greatest athletes on the planet.

TB12 and Gisele took the kids to the beach over the weekend to relax and catch some rays -- with Tom hoping to even out his farmer's tan.

Obviously, Gisele looks incredible ... but what's new?

The two packed on the PDA -- kissing during a romantic stroll -- and, with exactly one week until veterans report to Patriots training camp ... Tom's gotta get it in while he can.

As for Tom's G.O.A.T. bod ... it's the result of hardcore training, muscle pliability routines and diet with the TB12 Method.

Yeah, there might be more ripped QBs in the league -- but Tom has said his body is built for success on the field ... not on the beach.

And, if you think Tom's worried about all the haters -- he's probably too busy focusing on other things ...

Michael B. Jordan Rocks the Boat With Rock Hard Abs

Michael B. Jordan is giving everyone on the Italian Riviera a sneak peek at "Creed II" ... or at least at Creed's chiseled bod on a boat.

MBJ's European vacation is in full swing, and Monday he took a dip in the water off Capri ... showing off his toned physique in the process. No doubt about it -- this guy looks good doing anything. Or nothing at all, for that matter.

Nothing says you've made it like hiring someone to row, row, row your boat. Yeah, Mike's killing 2018.

The "Black Panther" star was in the South of France last week with rumored gf Ashlyn Castro, getting his freak on in a swanky nightclub.

As they say ... work hard, play harder -- and when you look like this, try to do it shirtless. Grazie, Mike!

Leonardo DiCaprio Bump, Set, Spike ... With Ansel Elgort

Leonardo DiCaprio is a beast on the beach volleyball court ... and so is Ansel Elgort, judging by the game they had Sunday in Malibu.

The two actors squared off in an intense match at the beach ... intense enough that Ansel not only played shirtless, but had to cool off afterward in the water.

No word what brought 'em together -- Ansel's nearly 20 years younger than Leo, so they're not exactly peers, and they're not costarring in anything at the moment. Leo's currently filming Quentin Tarantino's "Once Upon A Time In Hollywood" ... about the Charles Manson massacres in L.A.

Looks like this is his new thing -- Leo's been brushing up on his v-ball skills all summer.

Ella Rose I'm Rooting For Green!

Ella Rose is about to overheat ... her phone that is, if she doesn't put it away.

Julian Edelman's baby mama hit the beach in Santa Monica during L.A.'s heatwave. Don't worry ... she managed to cool off in the Pacific sans her phone.

With her choice in bikini color, you'd think Ella would be rooting more for the Seahawks or Packers instead of the New England Patriots, where Edelman plays wide receiver ... but, it's hard to think football at all when Ella hits the sand.

Blake Griffin's GF White-Hot Bikini Heat ... in Miami

Y'all really thought Blake Griffin's fun in the sun was over when he got shipped to Detroit?!

Well, you were VERY wrong ... and these pics of the Pistons superstar's girlfriend in a skimpy white bikini is all the proof you need.

Of course, BG's special lady friend is Francesca Aiello, who founded Frankies Bikinis ... so, this is kind of her job. Man, she's good at it.

The new couple hit Miami Beach on Friday morning ... both showing a LOT of skin and gettin' all romantic in the water -- almost like that scene from "Dirty Dancing."

Only 70-something days until NBA training camp opens ... better make 'em count!

Sylvester Stallone Yo, Jennifer ... I'm the King of the World!!!

Good to know even Sylvester Stallone does the Leo in "Titanic" thing when he's on a boat, but most of us can't compete with the view he has right now -- namely, his beautiful wife, Jennifer Flavin!

Sly and the family Stallone are vacationing in Saint-Tropez to celebrate his recent 72nd birthday. While he was playing Jack on Tuesday ... Jennifer and their daughters, Sophia and Sistine, were on paddle boards, attempting what looks like some yoga positions.

The fam's already enjoyed some top-deck time -- sunbathing in their bathing suits -- and now they're looking to enjoy the Mediterranean waters.

If anyone's got it better than Sly ... nevermind. Nobody does.