No truth to claim that Billie Eilish has a sister

A social media post fabricates details about superstar singer Billie Eilish’s family.

The viral Instagram post from Feb. 20, which included a photo of Eilish juxtaposed with an image of another female, said Eilish's younger sister has an OnlyFans account.

OnlyFans, referred to in the post as "OF," is an internet subscription platform that lets users share and monetize their social media content. It’s popular for hosting adult content.

Text below the photos says, "2022 survey shows that 98% of people would rather pick Bellie (sic) Eilish little sister Bc of her free OF being ‘worth it.’ Do you agree?" The caption on the post says, "Would you pick @kwenbbys or Billie Eilish?"

The post was flagged as part of Facebook’s efforts to combat false news and misinformation on its News Feed. (Read more about our partnership with Facebook.) It appears to have been removed from Instagram.

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Eilish does not have a sister. Several media outlets have debunked rumors that she does and noted that Eilish only has a brother.

Her brother, Finneas, wrote the song "Ocean Eyes" that initially rocketed her to fame. Their close sibling relationship is detailed in a 2021 documentary.

Some reports pointed out that Finneas’ girlfriend, Claudia Sulewski, looks like Eilish, which seems to contribute to confusion about her siblings.

We rate the claim that Eilish's younger sister has an OnlyFans account Pants on Fire!