Angie Martoccio, writing for Rolling Stone:
“Halloween” is a twisted holiday song, where she playfully sings, “But I count on you to tell me the truth/When you’ve been drinking and you’re wearing a mask,” backed by an upright bass and subtle synths. Her vocals sail through the octaves, producing a chilling effect. “I love how sad it is to throw depression into a holiday,” she says. “I don’t want to do Christmas, because that’s overdone. But I had a voice memo on my phone, because I was trying to get stuff to sample on Halloween one year where I was totally by myself, and it’s children laughing in the background. It’s just so fucked up and weird to me.”