"The Rise and Fall of the Kate Empire" is the thirty-fifth episode of Lizzie McGuire.
When Kate dislocates her shoulder during cheerleading practice, Claire usurps Kate's position as captain. Lizzie helps Kate regain her popularity and a place in the cheerleading squad. Matt is excited to be in a school play and acts arrogant about it. He starts bossing his parents and Lanny around, but in the end he loses his voice and learns a lesson in humility.