He was accused of having airbrushed abs and a photoshopped package in his recent campaign with Calvin Klein.
But Justin Bieber hit back at the doubters the only way he knew how to: by posting a shirtless picture.
The 20-year-old pop singer took to his Instagram account on Wednesday to share a snap of himself wearing nothing but a flimsy white towel.
Justin's six pack abs were on full display as he hit out at all those who questioned his build with the caption: "Photoshop lol."
It appeared as if the Beauty And The Beat singer just got out of the shower and asked one of his pals to take a picture of his half-naked body for his 21.7million followers to enjoy.
Much was made about the racy advert campaign he participated in as he posed in briefs with 31-year-old Dutch model Lara Stone.
There was also a black-and-white six second promotional video shared on Calvin Klein's Twitter account last week, and was appropriately captioned, 'Drum roll... #mycalvins'.
A Calvin Klein source said: 'Justin has shot for Calvin Klein, we hope the results will be released later this year.'
Shortly after the campaign made its way around the internet, social media was abuzz with many claiming that his torso had been airbrushed to make him look bigger.
The new face of Calvin Klein even had to issue a cease and desist letter after a website posted what it claimed was an untouched photo from the shoot.
On Saturday morning, Breatheheavy.com posted a retraction and apology as they admitted that the image - which showed the pop star looking skinnier and considerably less well-endowed - is a fake.
