It wouldn’t be Halloween if Ellen DeGeneres wasn’t scaring celebrities.

The talk show host, who won last year’s Halloween by dressing up as the “lesser-known” Kardashian sister, Karla, is back at it again with her spooky antics ― this time in an awesome Sia costume.

DeGeneres continued her annual tradition of sending her beloved producer, Andy Lassner, through Universal Studios’ “American Horror Story” maze and filming his sheer terror for our enjoyment.

This time, Ariana Grande got in on the fun, joining Lassner for some shrieks, screams and LOTS of cursing. There’s no doubt these two will have a hard time forgiving DeGeneres for what she put them through.