WATCH: Ariana Grande Sniffs a Hot Fireman’s Armpit Dressed Up Like a Cow

You know it’s Halloween when…

Ariana Grande stopped by The Ellen DeGeneres Show dressed in a cow costume to reminisce with Ellen DeGeneres (a.k.a. Karla Kardashian) on her chilling Halloween experiences as a child.

“My mom used to smear fake blood all over the walls and we’d have to scrub and repaint the walls the next day.”

The Focus singer lent her talents to play “Ari Smells Ari” where she had to identify her signature fragrance on (mostly) shirtless models, oiling her nose on the chest of a hot cop and accidentally sniffing the armpit of a fireman. Watch it all go down in the video featured at the top of the page.