“Why do demons and ghouls hang out together?”/“Because demons are a ghoul’s best friend!”

“Diamonds Are a Girl’s Best Friend” is a song in the stage musical Gentleman Prefer Blondes (1949). In the movie version of Gentlemen Prefer Blondes (1953), it was sung by Marilyn Monroe. A pun on the song’s title has become a classic Halloween joke.
 
“Vampira says ‘a demon is a ghoul’s best freind’” was printed in the San Francisco (CA) Examiner on September 20, 1954. “Q: Why do demons and ghouls spend so much time together? A: Because demons are a ghoul’s best friend” was printed in The Courier-News (Bridgewater, NJ) on September 4, 1976. “Why do demons and ghouls always hang around together? Well, everyone knows that demons are a ghouls best friend” was posted on the newsgroup net.jokes on November 3, 1982. “Why do demons and ghouls hang out together? Because demons are a ghoul’s best friend!” was posted on LaffGaff on October 17, 2025.
 
   
Wikipedia: Diamonds Are a Girl’s Best Friend
“Diamonds Are a Girl’s Best Friend” is a jazz song written for the stage musical Gentlemen Prefer Blondes (1949), with music by Jule Styne and lyrics by Leo Robin. Carol Channing introduced the song in the original Broadway production, and Marilyn Monroe followed in the film version, performing it in a strapless, “now-iconic satin pink gown” in a rendition ranked by the American Film Institute the 12th best film song of the 20th century.
   
YouTube
Marilyn Monroe in “Gentlemen Prefer Blondes” - “Diamonds Are A Girls Best Friend”
Marilyn Monroe Video Archives
Oct 17, 2018
Marilyn Monroe singing “Diamonds Are A Girls Best Friend” in her 20th movie appearance from “Gentlemen Prefer Blondes” 1953
           
Newspapers.com
20 September 1954, San Francisco (CA) Examiner, “Day and Night with Radio and Television” by Dwight Newton, pg. 25, col. 7:
Vampira says “a demon is a ghoul’s best freind.”
 
Newspapers.com
4 September 1976, The Courier-News (Bridgewater, NJ), “Books post mind ticklers for children” by Pat Turner, pg. D-3, col. 2:
Q: Why do demons and ghouls spend so much time together?
A: Because demons are a ghoul’s best friend.
 
Newspaperscom
29 October 1978, Newsday (Hempstead, NY), Kidsday sec., pg. 1, col. 3:
Why do demons and ghouls get along so well?
Because demons are a ghoul’s best friend.
—Jennifer Talson, Uniondale
 
Google Groups: net.jokes
In the spirit of things
uwvax!rodolf
Nov 3, 1982, 1:43:20 AM
Why do demons and ghouls always hang around together?
Well, everyone knows that demons are a ghouls best friend.
 
Google Groups: rec.humor
HALLOWEEN (Long)
Nancy Carson
Oct 22, 1997, 3:00:00 AM
(...)
Why do demons and ghouls always hang out together?
Because demons are a ghoul’s best friend.
 
Google Groups: alt.med.fibromyalgia
OT Humour: For Halloween
Lucy (UK)
Oct 30, 2000, 7:06:33 PM
(...)
Q. Why do demons and ghouls hang out together?
A. Because demons are a ghouls best friend!
   
X/Twitter
Brita Muller
@BritaMuller
@comedysportzla Halloween Groaner Joke: Why do demons and ghouls hang out together? Because demons are a ghouls best friend!
4:29 PM · Oct 30, 2009
 
LaffGaff
Demons And Ghouls
October 17, 2025 by LaffGaff
Why do demons and ghouls hang out together?
Because demons are a ghoul’s best friend!