The inspiration behind the sultry pictures?

The “Bad Guy” singer reportedly loves ’40s and ’50s pin-up girl style.

She also spoke about the issue in her Miami concert last year, in an interlude video.

Billie Eilish on the red carpet

“If I wear what is comfortable, I am not a woman.

Clearly, Billie Eilish’s “British Vogue” cover was a long time coming.

PerBustle, Twitter is absolutely “obsessed” with the cover.

Billie Eilish on the red carpet

Social media didn’t hold back with the praise.

AnotherTwitteruser wrote, “i had to take my asthma pump cuz i literally stopped breathing.”

Thank goodness for emoji, which were used by many of Billie Eilish’s fans across social media.