This Barbie doesn’t need a bra.

Dua Lipa left jaws dropped while walking the red carpet at the LA “Barbie” premiere Sunday.

The “Don’t Start Now” singer wore a completely see-through crystal mesh dress by Bottega Veneta that revealed her nipples and her singular undergarment: a white lacy thong.

Dua, 27, who leads the highly anticipated film’s soundtrack with “Dance the Night,” also makes a cameo in Greta Gerwig’s movie as Mermaid Barbie.

Earlier in the day, she posed on Instagram wearing a Barbiecore-pink velvet minidress from the same brand, along with matching thigh-high woven boots ($9,500) and a silver Sardine Bag ($4,200).

Movie lead Margot Robbie also made headlines with her Mattel-themed ensemble at the premiere, with the Australian actress channeling 1960’s Solo in the Spotlight Barbie.

The “Wolf of Wall Street” star, 33, dazzled in a Schiaparelli Haute Couture strapless gown with Lorraine Schwartz jewelry and Manolo Blahnik heels.

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With the help of stylist Andrew Mukamal, Robbie has been been re-creating various iconic looks from Barbie’s closet throughout the flick’s press tour.

At an LA photocall for the movie on June 25, the “I, Tonya” actress posed in a polka-dotted Valentino minidress based on 2015’s Pink & Fabulous Barbie.

In Sydney, Australia, days later, she stepped out in a black-and-white striped Hervé Léger look inspired by the original doll’s swimsuit from 1959.

Ryan Gosling, the Ken to Robbie’s Barbie in the forthcoming flick, also has been stepping out in themed ensembles, with the “Notebook” star arriving at the LA premiere in a pastel pink Gucci suit that he paired with an “E” necklace in honor of his longtime partner, Eva Mendes.

“Barbie” hits theaters July 21, at which point fans can finally see Robbie’s titular character in all her Rollerblading, cowboy-hatted glory.