"How Groovy," Shaggy's song from Alien Invaders, is not a completely original song made for the franchise. It is a reimagining of a 1964 song by Petula Clark, "Downtown." Both songs have the same melody and rhythmic structure.

Interestingly, Frank Sinatra also recorded a cover of the song in 1966 on his album Strangers in the Night. This is the same album that inspired Scooby-Doo's name, from the "doo be doo be doo" part of the title track.

You can listen to the original song below! (Personally I prefer the Glee version of the song though, and that's actually where I discovered this fun fact lol)

"The Shrieking Madness" marks the first time we hear of the Planispheric Disc in Scooby-Doo! Mystery Incorporated. When the gang discovers the diagram of a disc piece inside the Darrow Archive Documents, a set of numbers is listed with the disc piece: 4, 8, 15, 16, 23, and 42. These coordinates are a reference to a recurring sequence of numbers in the television show Lost.

In Scooby-Doo! Mystery Incorporated, the Original Mystery Incorporated's equivalent to Shaggy, Ricky Owens, was voiced by a previous voice actor of Shaggy. Scott Menville, who voiced Shaggy in Get a Clue, provided Ricky's voice in flashbacks.

Welp, it appears that I messed up with yesterday's fun fact lol. The Mystery Machine being at Scorpion Ridge was not, in fact, an animation error. I had missed it from only rewatching the Shaggy, Scooby, Crystal and Amber parts for my fic, but there was a brief comment from Buck right before this scene that he hadn't gotten around to towing it yet. Thanks to Matt for catching that the error was in fact mine, instead of the animator's lol. With that said, here is an actually correct fun fact for this week!

A Scooby-Doo and Guess Who? guest star recently had a harrowing adventure in the location of another Guess Who episode. During a trip to Sicily, Whoopi Goldberg was recently trapped by Mount Etna erupting. Catania Airport made the decision to cancel all flights due to the volcano. Because her plane was unable to take off, she missed an episode of her talk show The View. She spent most of the day stuck in Sicily, but eventually made it safely home.

Whoopi Goldberg guest starred on "The Nightmare Ghost of Psychic U!" Five episodes later, the gang traveled to Sicily and met Steve Buscemi in "Fear of the Fire Beast!" The episode's plot involved the gang having to stop a Fire Beast that came from Mount Etna.

You can read more about the news story on Yahoo. Thanks to Shadowscooby for suggesting this fun fact idea!

A 1999 song from the rapper MF Doom uniquely utilizes a sample of a Scooby-Doo theme song. The song "Hey!" features MF Doom freestyle rapping over a production that is solely recycled audio from The New Scooby-Doo Movies intro.

I was completely unaware of this song before Alexandra Rutt shared it with me. The song is actually really cool! I think he did a great job utilizing the sample in an interesting and catchy way. Note that I have linked the clean version here, but there is an explicit version that can be found online for adult readers that would prefer that.

With the 2020s being one of the worst decades thus far for Scooby content, I thought it would be fun to do a breakdown of how many Scooby episodes and movies each decade has had. 

The 1980s had the most Scooby episodes with 178, although it's worth noting that number is greatly inflated by Scrappy shorts. Not counting the shorts individually, there were only 93 episodes in the 1980s.
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1960s: 15 episodes
1970s: 128 episodes, 1 film
1980s: 178 episodes, 3 films
1990s: 9 episodes, 2 films, 1 special
2000s: 67 episodes, 14 films, 1 special
2010s: 117 episodes, 22 films, 7 specials
2020s: 59 episodes, 6 films, 1 special

Bud Shelton from "Revenge of the Man Crab" (Scooby-Doo! Mystery Incorporated) was likely named after his voice actor, David Faustino's most famous role. Faustino was famous for voicing Bud Bundy on the sitcom Married...with Children.

The plot of "Dance of the Undead" from Scooby-Doo! Mystery Incorporated is based on a real-life historical event. On July 14, 1518, a woman named Frau Troffea and her daughter, Emma Gotz, began dancing uncontrollably in the streets. Frau Troffea continued dancing for a week straight, stopping only to sleep and eat. Some people who witnessed their strange dance began to mimic them. By August 1518, between 50-400 people began dancing in the streets for weeks at a time.

Historical records explain the phenomenon as stress-induced mass hysteria. Other modern theories for the bizarre phenomenon include food poisoning, and a condition in which the affected people's blood was overheating. It was believed that the dancing cooled down the victim's overheated blood through continuous full-body movement.

In "I Scooby Dooby Do" (Be Cool, Scooby-Doo!), the wedding guest book is filled with the real names of people who worked on the episode! The following names can be seen in the guest book throughout the episode:

• Kent Butterworth (animation timer)
• Desiree Craig (assistant production designer)
• Liza Dodson (assistant production designer)
• Robbie Erwin (background designer)
• Lance Falk (prop designer)
• Brian Hogan (animation timer)
• Cheryl Johnson (background designer)
• Zac Moncrief (series producer)
• Hannah Partlow (color stylist)
• Amy Pijanowski (assistant production designer)
• Kyle Stafford (editor)
• Swinton Scott III (animation timer)
• Wade Wisinski (line producer)