Braceface - Season 2 - Eps 23: Pegged
In an effort to prove she's not such a ""girly-girl"" Sharon decides to form an all girl rock group for a battle of the bands contest sponsored by a ‘girls' magazine. Dion, thrilled at the opportunity to design their outfits, jumps on board, but when Mangled Metal hears about the gender limitations they are outraged. As a result, they decide to disguise themselves as females so they can enter the contest as well--and win the expensive music equipment. So as the girls take a walk on the masculine side (I'm not sure that joining a rock group is necessarily a masculine thing to do), the guys dress like Britney Spears wannabes and call themselves the Mangled Petals. Hilarity ensues when everything comes out in the open at the concert – literally.
About Braceface

Title: Braceface
First Air Date: 2001-06-02
Last Air Date: 2006-01-01
Status: Ended
Rating: 6.602/10 (from 49 votes)
Language: EN
Seasons: 3
Total Episodes: 78
Network: Teletoon
Genres: Drama, Animation, Comedy
Production Companies: Jade Animation, Teletoon, Nelvana
Synopsis
The show, set in Elkford, British Columbia, is based around Sharon Spitz, who is a junior high school student with braces that get in her way of leading a normal teenage life. In the first season, she is enrolled at Mary Pickford Junior High.
Cast

Stacey DePass
Sharon Spitz (voice)