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Celine Dion wasn't the only one fighting back tears during her amazing Olympics performance ... Kelly Clarkson was also reaching for the Kleenex box!

Kelly was part of a team of NBC announcers watching Celine's comeback performance at the Eiffel Tower during Friday's 2024 Paris Olympics Opening Ceremony.

As you know, Celine has been sidelined for 2 years by Stiff-Person Syndrome – a painful neurological disorder -- and the Olympics marked her first show since she announced her diagnosis in 2022.

Beyoncé isn't letting Celine Dion or Lady Gaga overshadow her at the Olympics because she, too, is getting in on all the musical action!

Bey shocked the mountain of viewers of the 2024 Paris Olympics Opening Ceremony on Friday evening when all the sudden a video featuring the iconic singer flashed on everyone's TV screens.

In the 2-minute plus clip, Bey performed a remix of her popular tune, "YA YA" from her country album "Cowboy Carter" – and she got a little assist from some of the Team USA athletes.

Nick Carter made a dying fan's wish come true ... singing the Backstreet Boys' signature hit directly to her in a real tearjerker moment.

TMZ obtained the super touching video recorded in Frankfurt, Germany ... as the singer makes his way through the crowd, goes straight in to hug terminally ill Jenni Schmidt and then begins singing "I Want It That Way" -- just for her.

Jenni, whose last wish was made possible by an org named, Der Wünschewagen, was clearly over the moon during Nick's "Who I Am" world tour last Sunday.

J.D. Vance is defending his comments on Kamala Harris, Oprah and Gayle King are clearing up their relationship and Travis Kelce is blessing a fan ... all this on today's TMZ TV Hot Takes.

First up on "TMZ Live," Harvey and Charles break down Donald Trump running mate's defense of his controversial "childless cat ladies" remark.

5:39 PM PT -- Halsey replied to Britney, sending the love right back ... saying on X, "you were the first person who ever made me realize what it means to feel inspired. And you continue to inspire me everyday."

Halsey's new song, "Lucky" is not a hit with Britney Spears -- or so it appeared based on an angry post accusing Halsey of stabbing her in the back ... a post she almost immediately deleted.

Celine Dion just delivered a helluva performance at the Olympics ... and it won't soon be forgotten.

Check out the clip ... the chart-topper wrapped up a pitch-perfect performance of Édith Piaf's classic, "Hymne A L'Amour," where she wore a sparkling silver gown that contrasted the golden glow of the floating Olympics cauldron beside her.

Celine's particularly impressive here ... looking so much like her vintage self it's a shock to remember she's suffering from Stiff-Person Syndrome -- a major neurological disorder.

The Olympics opening ceremony kicked off with one of its wildest starts ever -- a castle full of beheaded Marie Antoinettes rocking out to heavy metal ... and boy, was it a sight.

The performance over in Paris Friday was electrifying -- heavy metal band Gojira teamed up with opera singer Marina Viotti to kick things off for a head-banging revolution ... while all the Marie Antoinettes sang along to the famous revolutionary song "Ah! Ça Ira!"

Red fireworks -- meant to symbolize blood, of course -- shot into the sky ... while actual fire and each band member staggered onto a different windowsill brought the performance to life.

Lady Gaga has officially kicked off the Olympics opening ceremony -- putting on a showy performance on the steps of the Seine river ... and she did so by herself, for now.

Check it out ... the singer belts her heart out as she sings an all-French classic, known as "Mon Truc En Plume." Gaga seems to pay tribute to singer Zizi Jeanmaire with her performance -- which is filled with over-the-top pink feathered fans, dancers dressed in all-black, and a full jazz band.

Remember, Zizi memorably performed "Mon Truc En Plume" on "The Ed Sullivan Show" decades ago ... where she wore all-black and was joined by dancers carrying massive feathered fans. See the resemblance???

Lady Gaga is gearing up for her performance at the Olympics opening ceremony ... cramming in one last rehearsal before the big show.

The singer was seen practicing her number for the highly-anticipated performance ... as she was photographed singing on golden steps alongside the Seine in Paris. Gaga pulled out all the stops for her gig, too ... as she performed in a chic all-black ensemble next to dancers and a full jazz band decked out in similar monochromatic looks.

Gaga and her dancers rounded out the choreography by integrating over-the-top pink feathered fans ... reminiscent of the famed Moulin Rouge cabaret.

Megan Fox is pregnant ... or, she's at least playing a pregnant woman in a new music video with her rock star boyfriend.

Here's the deal ... Machine Gun Kelly and Jelly Roll just released the vid for their collab, "Lonely Road," and Megan's got a starring role as a pregnant woman who gives birth by the end of the song.

At the beginning of the video, Megan debuts the baby bump ... and MGK is kissing and caressing her belly in a few scenes. Pretty wild, right?

Jason Aldean's concert featured an unwelcome surprise -- not another country star, but a fan who got onstage ... this before he got laid out and carried out, which we have on video.

TMZ has obtained footage from Savannah, Georgia's Enmarket Arena -- where JA was performing Thursday night -- after a man hopped onstage ... only to get manhandled by uniformed officers, who lifted him up and dragged him outta there.

Watch -- a man who appears to be a security guard is already holding the dude down just feet away from the country music star ... yelling in his face before cops rush over and nab him.

Celine Dion certainly knows the power of love ...reveling in the adoration she's getting from fans as she returns to the spotlight -- people were eating it up ahead of her Olympics gig.

The singer, who's set to perform with Lady Gaga at the opening ceremony for the 2024 Paris Olympics, received the warmest of welcomes from fans Thursday night in the City of Lights.

CD was decked out in full Dior ... and greeted with screams and chants as she left her hotel. The singer blew kisses to the crowd and took a few photos.

Jennifer Lopez is back in her native city after her extended birthday Hamptons trip -- and while there's still no Ben Affleck in sight ... there is a remnant of him around.

The singer/actor popped up in NYC Thursday ... where she was galivanting around town in a stylish 'fit and looking pretty damn fabulous to boot. Per usual, she was rolling with her manager Benny Medina and a small entourage ... but J Lo was out there looking confident.

First, she went to lunch in SoHo ... where she was flashing a big smile, but more importantly -- her wedding ring, which she seems to have mostly been rocking of late.

Macy Gray says she's got a simple, if not fully legal, formula for keeping her spirits up -- and she's copping to it ... on camera!

The singer casually revealed the boozy secret to her happiness during Wednesday's premiere of MTV's "The Surreal Life: Villa of Secrets."

The celebrity contestants were learning breathing techniques in the mountains of Colombia when Macy revealed her preferred method of healing ... "cocaine and a couple shots."

Celine Dion is set to make her triumphant return to the stage for both the Olympics and a Las Vegas residency ... a decision TMZ is told is both a positive sign about her Stiff-Person Syndrome treatments ... and also risky.

Here's the deal ... CD will perform Friday at the opening ceremony for the 2024 Olympics in Paris ... while also in the "final stages" of negotiating a Resorts World residency ... two major developments amid her sometimes debilitating struggle with SPS.

Dr. Pavan Tankha, an SPS specialist with the Cleveland Clinic, tells TMZ ... while he can't speak specifically about Celine's situation ... he believes her return to performing is an encouraging sign about her condition ... but there are some big cautions.

Celine Dion returned to her hotel after a marathon day of Olympic rehearsals in Paris to find a surprise concert of her own -- courtesy of her fans singing and cheering for her one day before her grand stage comeback.

Check out the vid ... the singer had her hand over her heart as she took in the unexpected serenade before heading indoors in the early hours of Thursday.

Celine was rocking a stunning black dress with her hair pulled back in a bun, showing off that big, dazzling smile as she watched the crowd do her thing.