Swarm, Donald Glover’s new Prime Video series, marks Billie Eilish’s acting debut.

Swarm is a thriller about Dre (Dominique Fishback), a superfan of Ni’Jah, a Beyoncé-like pop artist, who gets deadly in her obsession. 

Eilish portrays a cult leader named “Eva.”

Fans loved seeing Eilish get into her acting bag. 

“Billie acting era, I’m here for it.” wrote one fan tweeted.

“Billie sounds like she could play a serial killer in the best way possible,” said another.