Nick Carter sparks concern with alarming slimmed-down appearance: ‘Hope he’s doing fine’

Nick Carter’s slimmed-down appearance has sparked concern amongst fans who are worried about his well-being.

On Wednesday, the singer shared a relaxing selfie via Instagram ahead of practice for the Backstreet Boys’ Las Vegas residency at the Sphere.

“Soaking up some Vegas heat before today’s rehearsals,” Carter, 45, captioned the photo.

Carter appeared in good spirits, wearing a gray hat and a dark red Ford T-shirt.

Fans couldn’t help but voice their concerns about his thin frame in the comments section, however, with one writing, “Sorry to say, but you look a bit too thin to me!🥺 … I hope you’re okay, @nickcarter !🙏🏻🙌🏻🙏🏻..Love you so much!❤️.”

“He looks very unhealthy, hope he is okay!” another added, as a third chimed in, “I’m a [bit] nervous.”

“Maybe he took some Ozempic,” a fourth wrote, to which another snapped back, “Maybe you should mind your business.”

Meanwhile, others rushed to Carter’s defense, urging critics not to “comment on other people’s bodies.”

“Hey ladies … just like we don’t want men commenting on our weight … men don’t need to hear your opinions either,” one supporter wrote.

“[I] think it’s more out of concern … hope he’s doing fine mentally and physically 💜,” a second added.

A source, meanwhile, told Page Six that Carter is “not on Ozempic.”

According to the insider, the pop icon and his bandmates have been rehearsing for their Vegas residency “for the past two months now” and “working out nonstop.”

“It’s not going to be an easy show,” the source continued, adding that Carter’s social media proves that he has slowly slimmed down over the past few months.

“It didn’t happen overnight,” they said.

Reps for Carter did not immediately respond to Page Six’s request for comment.

The Backstreet Boys — which also consists of Brian Littrell, AJ McLean, Kevin Richardson and Howie Dorough — will begin their “Into The Millennium” residency at the Sphere starting July 11.

They are set to perform 21 concerts before wrapping their final show in late August.

Nick’s return to the stage comes after the tragic deaths of three of his siblings, Leslie Carter, Aaron Carter and Bobbie Jean Carter, who passed away in 2012, 2022 and 2023, respectively.

In November 2023, the “I Want It That Way” singer admitted he was still grieving his late brother, telling E! News that it “hurts” not to have made amends before he passed.

He also addressed Bobbie Jean’s death in January 2024, writing via Instagram that “it may take a lifetime to fully process the loss [his] family has endured over the years.”

Nick was one of five siblings. The family is also survived by Aaron’s twin sister, Angel.