Justin Bieber rocks 'short shorts' on while posing wife Hailey in matching pair

 26-year-old pop star proudly rocked some ‘short shorts’ on Sunday for his latest series of Instagram self-portraits.

For his caption, the Baby singer quoted a string of lyrics from the The Royal Teens’ 1957 hit Short Shorts.

‘Who wears short shorts? We wear short shorts. They’re such short shorts. We like short shorts. Who wears short shorts? We wear short shorts,’ captioned Bieber, who boasts 156million followers.

Justin completed his outfit of the day by throwing on an oversized grey sweatshirt and slipping his feet into some striped socks by the French brand VETEMENTS and a pair of multi-colored Adidas kicks.