Why is Jason Wu called a piece of shit?

This is a joke. "A piece of shit" means that a person (especially a celebrity) appears in a certain place. This person looks like a piece of shit, which makes his gathering environment very chaotic. For "Jason Wu", it implies that his appearance in a certain social circle (such as the film industry) will cause great changes and bring many new things.

Jason Wu, an actor, director and producer in China, has won two China Film Observation Awards and three Golden Rooster Awards, and is known as "the new normal of China film".