Don’t bring her down today.

Christina Aguilera continued to spark concern among fans over her drastic weight loss after she posted a video on Instagram in which she was visibly smaller.

The “Genie in a Bottle” singer, 43, hit up the Barry’s gym in West Hollywood, California last Thursday to celebrate the 25th anniversary of her self-titled debut album and her limited-edition fuel bar shake called Genie in a Blender.

In her Instagram post the next day, Aguilera posed wearing a skin-tight black bodysuit and thigh-high black leather boots while holding the shake in the gym and cafe 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 this ridiculous diet the celebrities are on right now and she doesn’t look good doing it either,” one user wrote.

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

“Too thin now!!! She looked much better with some weight (in my opinion),” a third person commented.

“Wait she lost all that weight because of Ozampic (sic), not because of exercise,” a fourth fan claimed.

Another netizen said Aguilera is “too skinny.”

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

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

In August, the five-time Grammy winner dismissed speculation about her new look in an interview with Glamor.

“I have now reached a maturity where I don’t care about your opinion at all. I won’t accept it,” she said.

“It must be your responsibility to take your place. Other people’s opinions of me are none of my business,” Aguilera added.

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

“You have a completely different body when you’re a teenager than when you’re 20,” she told the magazine.

“I started filling up, and then it was unacceptable because I thought, ‘Oh, she’s getting fatter.’ Then I had people from the industry: ‘They liked your body and the way you were as a skinny teenager.'”