Kelly Clarkson was carefree performing in Las Vegas on Wednesday, her first time taking the stage since her viral feud with a Brooklyn store.

The Grammy winner was all smiles belting out “Strong (What Doesn’t Kill You),” “My Life Would Suck Without You” and more hits during the corporate event, as seen in a fan’s Instagram video.

The singer, 44, wore flared velvet pants and a sparkling black top with fringed sleeves and shoulder pads for the upbeat performance.

She showed no signs of the recent drama as she excitedly greeted attendees at the Allegiant Stadium show.

“Are you all ready for a good night?” the “American Idol” alum asked before whooping.

Clarkson has been in headlines all week since calling out Art of Play, a curiosity shop in Brooklyn Heights, over an alleged “Pretty Woman” moment she experienced shopping on Saturday.

The tense moment was captured on security camera footage, which journalist Pablo Torre released Tuesday.

The “Voice” coach, who could be seen storming out of the store in the clip, tweeted a scathing review after interacting with an allegedly “rude and snobbish” employee.

When the store subsequently insisted the $15,000 mechanical bird she wanted was not for sale — but a replica, or a similar automaton, had been offered to Clarkson — she fired back via X.

“So you’re not only rude, you’re also a liar,” she wrote. “Got it.”

Art of Play co-owner Adam Rubin called the “ludicrous” feud a “he-said, she-said thing” in an exclusive chat with Page Six.

“She’s going to say one thing, I’m going to say another thing,” he noted. “The point of it is, nothing happened in the shop that was so dramatic that it’s worth throwing a Molotov cocktail into a mom-and pop-business.”

Rubin, who has raised the price of the bird to a whopping $15 million, told us he believes Clarkson was “pissed” over not receiving “special treatment.”

We hear the songwriter “must’ve been livid” to air her frustrations with the store publicly, with a source claiming Clarkson is “usually chill.”

The insider said, “She’s not someone who goes around making a big deal out of nothing.”