Billie Eilish has a good comeback for bad guys who body shame.

Armed with a healthy helping of body positivity and a good dose of self-confidence, the “Bad Guy” singer is swatting away at internet gnats guilty of cruelly criticizing her newly unveiled curvy frame.

Returning fire to keyboard body-shamers — who, in October, shamelessly picked apart the 18-year-old after she skipped her signature baggy streetwear in favor of a formfitting tank top while running errands in Los Angeles — Eilish smoothly says the nasty reactions to her voluptuousness didn’t come as an offense because she’s comfortable with how she looks. 

“There’s this picture of me, like, running from my car to my brother’s front door — on like, a 110-degree day, in a tank top,” the “Don’t Smile at Me” singer explained to Vanity Fair in the fourth edition of her “time capsule” video interview series.

“And everyone’s like, ‘Damn, Billie got fat!'” she said, mocking her haters. “And I’m like, ‘Nope, this is just how I look! You’ve just never seen it before!'”

Shrugging off the shade from her digital detractors with an apathetic, “whatever,” Eilish  — who posted a TikTok from YouTuber Chizi Duru, encouraging Instagram followers “to start normalizing real bodies,” the same week the tank top photo was published — went on to say she wants her messaging on body image to help fans feel “comfortable” in their own skin. 

“I love having kids relate to me and tell me that I make them feel comfortable in their bodies,” she said. “If I can do anything, I wanna do that.”

An unabashed soldier in the war against body-shaming, a typically covered-up Eilish stripped down to her bra during a performance at Miami’s American Airlines Arena in March, protesting the impossible beauty standards forced upon women in the music industry — and the online body shaming that comes with it.

Eilish, alongside fellow female powerhouses Dua Lipa, Taylor Swift and Beyoncé, is up for several Grammys in 2021, with nods for Record of the Year, Song of the Year and Best Pop Solo Performance.