Halloween's a very popular day in the TMZ office, and staffers pulled out all the stops this year ... dressing as some of your favorite celebs and pop culture moments.
We had Barbenheimer, Kendall Jenner plugging 818 Tequila with Bad Bunny, Ariana Grande and Spongebob (aka, her new boyfriend, Ethan Slater), and Britney Spears with her concerning dance companion -- a knife.
Taylor Swift during her "Eras" tour was also another highlight .