Image Source: Getty / Paul Archuleta / Contributor [1]

Marsai Martin [2] celebrated her birthday over the weekend, and of course the mogul gave us a beauty moment to remember. The actor and producer, who threw a "Far Far Away"-themed party, looked every bit like a princess for the occasion — and the unexpected hair color [3] she wore was the icing on the (royal) birthday cake.

Martin kept her makeup fairly simple, opting for a brown smoky eye, a '90s supermodel lip [4], and bronzed skin, which really served to highlight the bright copper hair color [5] she debuted on the red carpet of her party. Martin's hair was kept in loose voluminous curls [6], a nod to the Y2K aesthetic that has been making waves (and the same aesthetic that Martin herself has been dominating [7] as of late). As a result, she looked every bit like Ariel from "The Little Mermaid."

Copper hair saw a surge in popularity earlier this year when Kendall Jenner revealed her version of the color [8] during Milan Fashion Week. Since then, the hue has been seen everywhere from Coachella to red carpets, so it wouldn't be a surprise to see it trending again as the fall and winter approach. Take a closer look at Martin's new copper hair color below.

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