Look! Stars showed up in costume to the Halloween Kills premiere

Now that's what we call a 'killer' costume party

To celebrate the long-awaited premiere of Halloween Kills, the cast and invited guests hit the black carpet in style — or should we say, spooky style, in costume. And leading the charge was veteran Halloween star Jamie Lee Curtis, who used her costume choice (bloody shower curtain and all) to pay homage to the original scream queen: her mother, Janet Leigh.

Curtis told Entertainment Tonight that the pale blue dress was not only a tribute Leigh's character Marion Crane but also a nod to the 2012 movie Hitchcock starring Scarlett Johansson, explaining "it's meta because we never knew what color Janet Leigh's dress was because it was a black-and-white movie. But now because of the 'Hitchcock' movie, we know it was pale blue."

Double check that your doors are locked and the lights are on, and click ahead for more photos.

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Jamie Lee Curtis and Kyle Richards

Judy Greer

Judy Greer channeled Annie Hall vibes for her costume for choice.

Kyle Richards

Jamie Lee Curtis and Judy Greer

Lisa Rinna

Kathy Hilton

Jason Blum and Jamie Lee Curtis

Jason Blum also went full meta with his costume and dressed as Curtis' Halloween character Laurie Strode.

Teddi Mellencamp, Dorit Kemsley, Kathy Hilton, Kyle Richards, and Lisa Rinna

Chris Colfer

Kyle Richards, Teddi Mellencamp, and Faye Resnick

Khleo Thomas

Eugenia Kuzmina

Nick Castle and James Jude Courtney

Dorit Kemsley

David Gordon Green

Dylan Arnold

Tristian Eggerling

Anthony Michael Hall

Carmela McNeal

Mauricio Umansky

Scott Teems and McCabe Teems

Thomas Mann

Nancy Stephens

Jason Genao