A plastic surgeon claimed on Instagram that Justin Bieber might have had a hair transplant.

Earlier this May, Gary Linkov, M.D., posted a reel captioned: "Did Justin Bieber have a hair transplant?" In it, he weighed in on how the singer's hair looks now compared to a few years ago.

"Justin is starting to show his hair again... When we look back in 2022, there's clear recession in the frontal temporal areas. After that Super Bowl, he started to wear these hats, and he was kind of covering up his hair so it's hard to tell what was going on. Remember, hair transplants can take up to a year or year and a half to see final results," he said.

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"It looks like maybe he did have a hair transplant. Because when I'm looking at this corner here, it looks much flatter. It doesn't have that recession. And when the hair is wet, you can tell the regularity of that area. It looks like maybe it was transplanted."

His reel received mixed reactions from his followers and the netizens.

"He did not have a hair transplant," said one netizen.

"It's so strange that a hairless person talks about hair," commented another person, while others claimed that it really looked like Bieber had undergone the procedure.

"He had a hair transplant. It's obvious, and who cares," opined a different commenter.

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"Why can't they just be transparent and admit what they've done," said someone else.

"I've had a hair transplant. Yes, he had one. No shame in it," wrote another netizen.

"I had seen that picture! To me, it looks like a hair transplant and not a good one. It's too straight! Looks unnatural," read another comment.

"Nothing to be ashamed of. 2024 hairline is completely different from the one from the past," remarked a different person.

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Dr. Linkov specializes in hair surgery and hair transplant. Per his official website, he is the "#1 Hair transplant surgeon on YouTube" and "one of the best hair transplant surgeons in the country."

He founded Linkov Hair Surgery, a premier medical facility in New York City, because "he too suffers from hair loss."

"As a hair loss doctor, he treats his patients with compassion while offering the best quality hair treatments," a portion of his profile said.

Dr. Linkov carries double board certifications from the American Academy of Facial Plastic and Reconstructive Surgery and the American Board of Otolaryngology-Head & Neck Surgery.

He also appears to be popular on social media, with over 874,000 subscribers on YouTube and 43,700 followers on Instagram.