The Big Mess Up

 is the fifty-second episode of the first season of Star Teens Unite!.

Summary
While Ella, Inidra, Sandra, Felicia, Lisa, Tanya, and Sheila attempt to get their picture taken at Ella's garage wearing their Star Teens masks, two goblin con artists, Morey and Edmund, make a serious mess in the village of Arco Iris.

Debuts

 * Morey and Edmund

Characters

 * Ella
 * Inidra
 * Sandra
 * Felicia
 * Lisa
 * Tanya
 * Sheila
 * Trixie (Ella's mother)
 * Julie (Ella's younger sister)
 * Morey and Edmund
 * Buru

Voice Cast

 * Aimee Carrero - Tanya
 * Ariel Winter - Julie
 * Colleen O'Shaughnessey - Trixie
 * Grey Griffin - Sandra
 * Jeff Bennett - Edmund
 * Kari Wahlgren - Ella
 * Kate Micucci - Inidra
 * Kimberly Brooks - Sheila
 * Tara Strong - Felicia
 * Tom Kenny - Morey
 * Vanessa Marshall - Buru
 * Vyvan Pham - Lisa

Trivia

 * Goblin con artists Morey and Edmund debut here.
 * Sixth time Ella, Inidra, Sandra, Felicia, Lisa, Tanya, and Sheila wear only Star Teen face masks, not their Star Teen outfits until later in an episode; the other times being "Masked in Seattle", "Reeking Havoc", "American Werecats in Orlando", "Beware the Dragon!", and "The Web of Doom". Here, the girls wear their own masks as they attempt to get a whole photo of themselves at home.
 * Star Teens Say: Cleaning the lot