Matt Damon has the whole world talking.

The actor appeared at a "Great Wall" press conference in China, but all anyone can talk about seems to be his ponytail. Why? Well, here it is:

Here's what people are saying:

Someone created a Twitter account for it.

Some thought it deserved a slow clap.

Others were disturbed.

Some gave it loving emoji eyes.

Others didn't know how to feel.

Some thought it was grown for a movie.

Others had movie jokes.

Some thought it was 'fabulous.'

Others had Affleck/Gardner jokes.

And some gave it a definite yes.

But what about "The Great Wall?"

The $150 million Zhang Yimou-directed film is set to feature Matt Damon, Willem Dafoe and several Chinese stars.

"The reason I took this film on is it is about Chinese culture which attracted me the most," Zhang said, according to the Hollywood Reporter. "Even though it is about fighting against monsters on the Great Wall, it still deals with a lot of what I want to express. It includes everything a good film needs -- good actors and a good story."

"The Great Wall" is slated for a November 23, 2016 release. Before that, Damon's set to star in "The Martian," which is set to drop this November.