Justin Bieber took to the stage to perform for the first time in four years at the 2026 Grammy Awards - but his new hairline stole the limelight.
The 31-year-old singer shocked fans with his short hairstyle in Los Angeles last Sunday, which showed off a defined line of noticeably stubbier locks along the front of his hairline - which fans were quick to point out could indicate a hair transplant.
In a snap shared online showing a close-up of Bieber's head, his hairline appeared lower and more defined in comparison to pictures of the crooner in previous outings.
But it is still a far cry from the luscious locks and swooping fringe seen at past award ceremonies and performances.
Despite the Baby singer's unusual outfit for his performance - shirtless and wearing only gym shorts - many were distracted by the buzzcut, sparking rumors over his potential cosmetic treatments.
While the father-of-one, who shares a son with wife Hailey Bieber, has never confirmed having undergone a hair transplant, it did not stop fans from speculating.
More attention was drawn to the pop star's hair after budget airline RyanAir shared a now-viral post about his appearance.
'Should have gone to Turkey,' the airline wrote in a post shared to X, formerly Twitter, of Bieber, referencing people visiting the country for tweakments.
Elsewhere, other fans continued to speculate.
'Thought it was pretty common knowledge that he had a hair transplant,' one user wrote.
Someone else declared: 'I can recognize a poorly done hair transplant from a mile away.'
Some fans defended the singer, arguing that there is nothing wrong with getting a hair transplant.
'I don't think that's a hair transplant. People with hair transplants avoid buzz cuts at all costs,' one wrote.
'If all the women in the industry can get lip filler and Botox and surgery how is this a problem if Justin did a hair transplant?' said another, in defense of the star.
Someone else joked: 'Bieber been getting roasted for his hair since he was 12, you think he gives a fk about this?'
The Daily Mail has reached out to a representative of Justin Bieber for comment.
The 31-year-old singer shocked fans with his short hairstyle in Los Angeles last Sunday, which showed off a defined line of noticeably stubbier locks along the front of his hairline - which fans were quick to point out could indicate a hair transplant.
While the father-of-one, who shares a son with wife Hailey Bieber, has never confirmed having undergone a hair transplant, it did not stop fans from speculating.
It's not the first time the Grammy Award-winner has sparked rumors of a hair transplant.
In 2024, a picture of Bieber at the beach showed him with a thick head of hair, following years of him being photographed with a hat or hoodie covering his head.
A New York-based Dr Gary Linkov, who has not treated Bieber, took to social media to share his theory, hypothesizing the singer underwent surgery after noticing in 2023 his hairline looked 'flatter.'
'A few years prior to that in 2018, he had a definite recession, very scalloped frontal hairline. [But] now it's flatter onto his forehead -- much more linear,' he said in the clip.
Last year, fans were shocked after snaps showed the popstar's hair looking as though it was balding.
In pictures of the Swag singer at the beach shared online, Bieber can be seen with an alleged bald spot on the back of his head.
Many fans were appalled by his apparent hair loss, taking to social media to share their thoughts.
'Justin Bieber balding at 31 years is insane,' the astonished user wrote, alongside pictures of the artist.
'Crazy how time flies - feels like Baby just dropped and now he's balding at 31!' another shared.
One critic added: 'Not good. Biebs used to have a full head of hair!!!'
However, some committed fans leapt to his defense, writing: 'Usually it's like 26. He made it longer than most.'
'Teenagers discovering that grown adults experience body changes as they age will never not be funny to me,' added another.