Sydney Sweeney shares DNA with another iconic blonde bombshell: Marilyn Monroe. 

Indeed, the Housemaid actress and the Gentlemen Prefer Blondes star are related, with Monroe being revealed as Sweeney’s ninth cousin once removed, according to a newly released study by MyHeritage.

The pair are connected through Sweeney’s father Steven Sweeney and Monroe’s biological father Charles Stanley Gifford, and share an ancestor named Ezra Perry, a settler of Sandwich, Mass.

Fans have long compared the Euphoria actress to Monroe—who died in 1962—which prompted MyHeritage to look at their family trees.

“People have always drawn parallels between Sydney Sweeney and Marilyn Monroe,” MyHeritage Director of Research Roi Mandel said in a statement to Entertainment Weekly, “but seeing their paths align on a deeper level inspired us to look for a real bond in the MyHeritage archives.”

Describing the discovery as “incredible,” Mandel added that “it’s a powerful reminder that humanity is one vast family tree, and when we dig deep, we uncover how remarkably interconnected we all are.”