Halloween always brings out the hottest costumes that pay homage to pop culture. (opens in new tab) This year, several celebrities jumped on the Squid Game (opens in new tab) mania train and dressed up as Squid Game (opens in new tab) characters (even the iconic robot doll) From K-pop stars to famous bakers, the best celebrity 2021 Squid Game Costumes (opens in new tab).

K-pop idols dressed up as animatronic dolls from "Red Light, Green Light" (opens in new tab) and posed as creepy robots.

The pop star also dressed up as a doll with a face mask and danced to Michael Jackson's "Thriller" on stage at the "Outside Lands" (opens in new tab) music festival in San Francisco.

Even one of the show's cast members joined in on the fun! Lee, who played Jiyeon (240), Sebyuk's marble partner, also dressed as a Red Light and Green Light puppet.

The "Girls Like Girls" singer chose a player's costume and looked exactly like Kang Sebyeok (067) (opens in new tab).

The actress from "Scandal" chose to pay homage to the show's main character, Song Ki-Hoon (456).

Chiggs (opens in new tab), one of this year's contestants, dressed as a security guard to celebrate Halloween with current and past GBBO contestants.

The K-pop group dressed as security guards for a special Halloween dance practice for their comeback song "Savage."