Scooby-Doo! and Kiss: Rock and Roll Mystery

'Scooby-Doo! and Kiss: Rock and Roll Mystery' is a 2015 direct-to-DVD animated crossover comedy mystery film, and the twenty-fifth entry in the direct-to-video series of Scooby-Doo films. It was released digitally on July 10, 2015, and was released on DVD and Blu-ray on July 21, 2015. The design of the film is inspired by Jack Kirby's comics.

This is the last Scooby-Doo! production featuring Mindy Cohn as Velma Dinkley since Kate Micucci would take over that same year. It is also Pauley Perrette's last film appearance before her retirement from acting in 2020.

Plot
Fred, Daphne, Velma, Shaggy and Scooby-Doo travel to an amusement park called Kiss World to see Kiss at their big Halloween concert and solve a mystery, mostly because Daphne has a crush on Starchild (Paul Stanley), much to Fred's annoyance. However, when the gang arrive, security chief and former government defense employee Delilah Domino refuse to let them in due to unexplained reasons, but they sneak in anyway, only to be caught by Delilah, who bans them from Kiss World under the suspicion of vigilantism. At that moment, Kiss arrives, and after the gang explains they are there to help, they tell Delilah the kids are free to stay, to which she reluctantly agrees, though she does not trust them just because they are amateur detectives. The Demon (Gene Simmons) initially opposes the idea due to Scooby accidentally spraying a water gun on him when he came to Shaggy and Scooby for a surprise visit, but later relents. As the gang split up for clues, Shaggy and Scooby are chased by an entity; Kiss comes to their aid. They tell the gang the entity is called the Crimson Witch, and she has been terrorizing the park for a while, and they need her to disappear before the concert. Meanwhile, Delilah places blames park supervisor Manny Goldman for the damage caused in Kiss World, threatening to drive him out of business if he doesn't close down the park for safety's sake while vowing to find the gang and "arrest" them.

A strange, perpetually barefoot fortune-teller named Chikara says the witch is from an alternate universe called Kissteria and plans to use the Black Diamond Kiss uses in their hit song "Detroit Rock City" to summon a monster called The Destroyer to conquer the Earth, which Velma finds hard to believe. To stop the Crimson Witch, the gang uses the diamond to lure the witch. However, the Crimson Witch chases them through a portal to Kissteria. She manages to steal the diamond and unleash The Destroyer, but the gang and Kiss arrive in a spaceship to stop the monster. The gang then returns to Earth, where they wake up believing the witch's gas caused them all to have a hallucination. They unmask the Crimson Witch as Delilah, who not only wished to sell the Black Diamond (needed for laser technology) to a competing defense company as revenge against her former employers, but to also keep Mystery Inc. away from her scheme while disguised as a security guard, fearing they might mess up her entire plot. Defeated, Delilah vows to sue Mystery Inc. for her exposure before she is carted off to jail, and Kiss agrees to see her in court on their behalf.

Later, the Starchild kisses Daphne right in front of Fred. Daphne then kisses Fred on the cheek, much to his delight. The Demon gives Shaggy and Scooby a smile. Shaggy and Scooby then see Kiss fly away with the Black Diamond to present it to the Smithsonian Institution. Shaggy asks Scooby if they should tell Velma about what they saw. However, Scooby suggests they do not, stating: "why rock her world?"

Voice cast

 * Scooby-Doo
 * Frank Welker as Fred Jones and Scooby-Doo
 * Matthew Lillard as Shaggy Rogers
 * Grey DeLisle as Daphne Blake
 * Mindy Cohn as Velma Dinkley


 * KISS
 * Paul Stanley as The Starchild
 * Gene Simmons as The Demon
 * Tommy Thayer as The Spaceman
 * Eric Singer as The Catman


 * Other
 * Jennifer Carpenter as Chikara
 * Garry Marshall as Manny Goldman
 * Penny Marshall as The Elder
 * Doc McGhee as Chip McGhoo
 * Jason Mewes as Worker #1
 * Pauley Perrette (in her last film appearance) as Delilah Domino, The Crimson Witch
 * Rachel Ramras as Shandi Strutter
 * Darius Rucker as The Destroyer
 * Kevin Smith as Worker #2
 * Tony Cervone as The Announcer

Soundtrack
All of the songs featured in this film are made by Kiss, including the one new song made for the picture, "Don't Touch My Ascot".