Matt Damon brings back his weird man bun on the red carpet in Beijing.

The 45-year-old first ditched his usual short hair for long locks during a press conference in Beijing last year.

And overnight, The Sun reports Matt embraced a longer mane of hair once again as he attended a photo call for his latest movie, Jason Bourne.

Posing alongside co-star Alicia Vikander, Matt was all smiles as he sported a “man bun”, made famous by the likes of Jared Leto and Harry Styles.

Matt Damon signs autograph for his fans in Beijing.Source:AP

Looking casual but smart in a black shirt rolled up at the sleeves and matching trousers, Matt took questions from the Chinese media about his return to the popular movie franchise.

Later in the day, Matt switched things up and wore a stylish suit and tie to a screening of the film, which sees him return to the titular role after a nine-year absence.

Many fans will be delighted by the return of Matt’s ponytail, after it made its debut in July last year during a press conference for his upcoming movie, The Great Wall, with the do quickly garnering its own Twitter account.

Matt Damon with his man bun and The Great Wall director Zhang Yimou in July, 2015.Source:AP

Matt confessed the long mane was a key part of his character, and the reappearance of his extensions hint that some additional shooting is being done for the movie while the star is back in the country.

Speaking to chat show host Graham Norton later in the year, Matt said: “I did a movie in China and I was there for about five months with that thing, and then we did a press conference at the very end.

“There are 700 hair extensions, it was a full day to put them in ... and then I had to manage it.

“I have a whole new appreciation for my wife and daughters — it’s very hard to do.”

This article first appeared in The Sun.