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Conor McGregor did it REALLY big for his birthday -- the UFC superstar stripped down to his undies and put it ALL on display ... leaving very little to the imagination in the process.

Mystic Mac went to Instagram to celebrate his 36th trip around the sun on Sunday ... flexing his muscles in his orange Versace briefs while aboard a luxurious boat.

Just like many social posts in the past, Conor's bulge made a special appearance ... something his followers made sure to point out in the comment section.

Haliey Welch's best known for her helpful mouth and spit tips, but it turns out men are hitting her up for a different part of her body ... namely, the little piggies on her feet.

We got the viral sensation at JFK Airport in New York City and our photog asked her if she'd received a whole bunch of DMs from guys trying to get with her ... and Welch told us they're all looking for one thing.

HW says a quick scroll through her messages reveals one common ask ... "toes, toes, toes."

Mark Zuckerberg's Meta is rolling back restrictions on Donald Trump's Facebook and Instagram accounts ... making the reversal only days after Trump ripped Mark online.

Meta announced Friday it was lifting all limits on Trump's official FB and IG pages as Trump gets closer to formally becoming the GOP nominee for president at next week's Republican National Convention in Milwaukee.

In a statement, Meta explains ... "In assessing our responsibility to allow political expression, we believe that the American people should be able to hear from the nominees for President on the same basis."

Sharon Stone's not one to fade into the background ... boldly working on one of her paintings while sporting nothing but teeny-weeny bikini bottoms.

The actress flaunted her artistic flair and oodles of body confidence while working on an unfinished abstract painting Tuesday in a cheeky pic taken from behind, and leaving little to the imagination!

Sharon bragged about her versatility in the caption, going effortlessly from poolside lounging to artistic endeavors at home -- no doubt, making the most of the sizzling hot days California's seeing currently.

Kevin Bacon is still feeling sexy well into his 60s ... because he's fishing for likes with a bare-chested photo.

The actor is celebrating his 66th birthday today and he's marking the occasion with a topless thirst trap ... showing off his abs, which are still there.

Kevin's posing outdoors somewhere, leaning back on what appears to be a rock near the base of a bluff ... and it looks like he has swim trunks on, so he may be near a beach.

Olivia Dunne has made a decision on her gymnastics future ... revealing she will be returning to LSU for her final season.

The 21-year-old gymnast posted a video to her social media on Monday ... confirming she's not hanging up the leotard just yet.

Many speculated if Dunne -- a member of the 2024 National Champion Tigers -- would leave the sport behind to pursue other opportunities ... as she's become quite the poster child for the Name, Image and Likeness era in college athletics. But in her video clip, she explained the chance to compete again for the Tigers weighed heavily in her decision.

Britney Spears has declared she's "single as f***" ... throwing heaps of shade at her now-ex BF Paul Soliz in the process.

The singer dropped a pap shot of them together in a car on her IG Stories Sunday, and called out the irony of Paul crying harassment during that moment ... when she says he welcomed the attention himself.

In the pic it looks like they're getting hassled -- Paul's got his arm up in the car, trying to shield himself from the pap cameras, while Britney's crouching all the way down next to him.

It appears Conor McGregor is inching closer to his UFC return ... 'cause the MMA superstar shared a bunch of sparring snapshots to his Instagram on Monday -- and if they're in fact recent, fans might not have to wait much longer to see him in action.

Notorious -- who backed out of his UFC 303 matchup with Michael Chandler last month due to a toe injury -- added two separate workout posts to his profile over the past 24 hours ... showing him having his way against his partner.

Conor appears to move around the canvas with no issue as he lands kicks and punches ... even to the point where he gets blood on his glove.

Teresa Giudice is getting scorched over a pic she posted that has been labeled "worst photoshop" ever.

So it seemed innocent enough ... Teresa posting the pic of her with Larsa Pippen, wishing her fellow reality star a happy birthday. Again innocent enough ... a pic by the ocean.

The caption ... “Happy Birthday to my girl @larsapippen wishing you all the best to come. Love you 💕.”

Syndey Sweeney's posting her own fireworks on Fourth of July weekend ... getting the weekend off to a bang in a selfie photo shoot.

The actress took to IG Saturday and posted a series of sexy snaps to the social media platform ... all featuring her in a tiny strapless top and matching miniskirt.

Check out the pics for yourself ... SS is rocking the clothes and hitting some suggestive poses while hanging out in her closet -- dropping to her knees in some snaps and bending at the waist in others.

Sean Diddy Combs was back on the radar Friday night ... but this time he was seen boarding his jet to fly out of town as his federal sex trafficking case continues to loom over him.

The rap mogul posted a new video on his Instagram Story -- showing him walking toward his private plane at an airport with a mat on the ground that read, "Combs Air."

Diddy briefly stopped and turned to the pilot standing on the tarmac, while stating, "What up? How you doing?" He then gave the pilot a fist bump before climbing a flight of stairs into the aircraft and mumbling, "No place like home."

Madonna is counting her blessings, just one year after being discharged from the hospital after nearly losing her life.

Madge took to Instagram to reflect on her past year, saying "A year ago today, I had just come home from the hospital after surviving a life threatening illness, I could barely stand in my backyard holding one sparkler."

She continued, "I made a miraculous recovery and had an amazing year. Thank you God. Life is beautiful! ♥️🧨🔥"

Jennifer Lopez is missing a key accessory in a social media upload ... further fueling the chatter she and husband Ben Affleck are headed for divorce.

J Lo is noticeably not wearing the green diamond ring Ben proposed with in 2022 as she promotes JLO Beauty's Ultimate Body Kit and Complexion Booster on Instagram.

It's not like Jennifer is without jewelry in the clip ... watch the vid, as she's clearly wearing stacked rings on her right hand and diamond earrings to round out her summery look of shorts and a halter top.

Kelly Stafford is addressing the "media storm" that followed her confession about dating a Georgia backup QB to make Matthew Stafford jealous ... apologizing to the man some folks THOUGHT she was referencing in the anecdote.

In case you missed it ... Kelly appeared on the 'Off the Vine' podcast earlier this month, where she recalled how she landed her now-husband when she was a cheerleader in Athens. During the show, she admitted to going after his backup first to get his attention ... and, of course, the plan ultimately worked.

However, the social media commentary afterward was not about relating to Kelly and Matthew's slow start ... it was more on ID'ing the unnamed backup -- and many assumed it was Joe Cox.

Kim Kardashian is known for switching up her look, but her latest 'do may be her most dramatic yet ... at least that's what the internet thinks, who are getting flashbacks to 1776.

The reality star posted a bunch of pics Sunday -- showing off her platinum blonde hair styled in basket braids ... which may be a KK first. She posed in her new hairdo, which featured a middle part with 2 elaborately interwoven braids sitting on each side of her head.

You can tell Kim was certainly feeling the vibe -- and while some of her fans did too ... there was a good amount of folks ready to roast, comparing it to a "founding father's wig."