Recently, Zhang Zetian appeared at the M+ Museum's 5th Anniversary Charity Gala in Hong Kong with her hair slicked back tightly against her scalp. Her look, which fully revealed her striking bone structure, earned her the nickname "bone structure litmus test" from netizens, though her style transformation also sparked some minor discussions about its cohesiveness.
Her hair was combed entirely back,紧贴ing her scalp without any bangs or stray strands, fully exposing her forehead, crown, and facial contours—a challenging style to pull off. She wore a light gray strapless satin gown paired with a red fur stole, embodying a restrained "quiet luxury" aesthetic that highlighted her shoulders, neck, and elegance through simple lines. Leveraging her naturally high cranial vault and full, rounded head shape, she carried off the hairstyle successfully. Critics praised her for having a "head that frames the face" and excellent facial dimensionality, turning the severe slicked-back look into an asset that enhanced her natural features.

