Justin Bieber stripped down in a Poland airport for reasons known only to himself.

He took off his shirt in the car on the way to the airport yesterday, walked to the airport in -10C weather, and went through security while shirtless. In a photo of the incident, a bodyguard is seen trying to block him from view.

It seems like a better way to block his body from view would be to wear a shirt.

"He wasn't told to take off his clothes. He had no metal objects on him,” a Lodz Airport spokesperson told Reuters. "He's quite skinny so I assume he was probably freezing."

The incident follows several other bizarre occurrences on his European tour, including wearing a gas mask out to dinner and going on a grammatically questionable Twitter rant.

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justin bieber shirtless