When Christina Aguilera shared a video of her noticeably reduced frame on Instagram, fans’ concerns on her dramatic weight loss continued.

The 43-year-old singer of “Genie in a Bottle” celebrated the 25th anniversary of both her limited-edition Fuel Bar shake dubbed Genie in a Blender and her self-titled debut album last Thursday by going to Barry’s gym in West Hollywood, California.

Christina Aguilera continued to spark fan concern about her drastic weight loss.

The “Genie in a Bottle” singer visited Barry’s gym in West Hollywood, Calif., last Thursday.

In her Instagram post the following day, Aguilera, who sported a skintight black bodysuit and thigh-high black leather boots, posed while holding the shake in the gym and café area.

At one point, the pop star lifted a dumbbell while posing under an illuminated Barry’s WeHo sign.

Several fans discussed Aguilera’s weight loss in the comments section of her post.

“Her unhealthy weight loss isn’t from working out it’s from taking this ridiculous diet the celebrities are doing right now and she doesn’t look good for it either,” wrote one user.

Aguilera celebrated the 25th anniversary of her self-titled debut album and her limited edition Fuel Bar shake named Genie in a Blender.

The pop star sported a skintight black bodysuit and thigh-high black leather boots.

“I don’t think she works out. She just doesn’t eat,” added another.

“Way too skinny now!!! Looked much better with some weight on her [in my opinion],” commented a third person.

“Wait she lost all that weight because of ozampic [sic] not exercise,” claimed a fourth fan.

Another netizen said Aguilera was “too thin.”

Chatter about the “Lady Marmalade” singer’s weight loss first made headlines in May after she appeared much thinner during a concert in Mexico.

Aguilera lifted a dumbbell while posing under an illuminated Barry’s WeHo sign.

One fan said Aguilera looked “way too skinny now.”

Several fans commented at the time that they believed Aguilera was taking Hollywood’s favorite weight-loss drug, Ozempic, to achieve her new figure.

In August, the five-time Grammy winner brushed off speculation about her new look during an interview with Glamour.

“I have a maturity now where I just don’t give a f–k about your opinion. I’m not going to take it on,” she said.

“It must be your responsibility to take up your space. Other people’s opinions of me are not my business,” Aguilera added.

Chatter about the “Lady Marmalade” singer’s weight loss first made headlines in May after she appeared much thinner during a concert in Mexico. (She is seen above in 2012.)

Several fans commented at the time that they believed Aguilera, pictured above in August, was taking Ozempic to achieve her new figure.

The “Beautiful” songstress said people have criticized her body since she first emerged in the music industry in the ’90s.

“When you’re a teenager, you have a very different body than when you’re in your 20s,” she told the magazine.

“I started to fill out, and then that was unacceptable because it was like, ‘Oh, she’s getting thicker.’ Then I had industry people: ‘They liked your body and how you were as a skinny teenager.’”