Ever since word got out about Greta Gerwig's "Barbie ... Mermaid Barbies were very famous." Every detail in her costume was identical, from her tail to her florescent-blue hair.

The movie has already left its mark on pop culture long before its premiere (hello, "Barbiecore" everything). Take a closer look at Lipa's blue mermaid hair in the "Barbie" movie below.

She wore the ultimate blue pearlescent shell bandeau that was reminiscent of the first mermaid Barbie's from the 90s. And though the original dolls kept the character's signature blonde locks ...