Shelley did not like Amber. This was the main purpose of her character of the movie. They had a fake friendship.
Shelley has a ginger bob, blue eyes and red lips. She often wears floral dresses like Amber and was seen stuffing tissues into her vest to make her look more attractive (and the guy she was talking to was like "how could you lie to me?" Girl if he's thrown off by the fact that your boobs are fake then that's a red flag and you're better off without him.) She is a good dancer, but seems to be stuck in Amber's shadow.
We notice Shelley's hate for Amber during "The Nicest Kids in Town" when she pushes Amber in the dance. This is why Amber almost calls her a whore before Link steps in. While they talk Shelly folds her arms. My girl Shelley was seen giving Amber the evil eye during "The New Girl in Town" song like "bitch shut up or imma get YOU after school." The shade was real. Insanely real. Finally when the Council girls dance for the tittle of Miss Teenage Hairspray Shelley tires to hit Amber. She looks back to see if she got her but unfortunatley Amber catches on and moves back. They give each other dirty looks before it's Amber's turn to dance.
Originally played by Shoshana bean in the Broadway cast. She had brown hair and her wig resembled Tracy's wig. She sang the "Mama I'm a Big Girl Now" playout.
She scored third place for the Miss Baltimore competition, with 903 votes.