The song is based on the character Alastor from the television series Hazbin Hotel.

Over time, the song became a sleeper hit, and received considerable renewed attention when Hazbin Hotel premiered in 2024.

Black Gryph0n provided the singing voice of Alastor in the pilot episode of Hazbin Hotel.

He has since reprised the role in several fan-made music videos for original songs, including "Insane".

In February 2024, Black Gryph0n made an licensing agreement with Epic Games to publish a Hazbin Hotel-themed emote entitled "Reaper's Showtime" to the online video game Fortnite, letting the player wield Alastor's cane and play "Insane".