Sister Act is the tenth episode of the fourth season of Disney Channel's That's So Raven and the eighty-eighth episode of the series overall. It aired on July 8, 2006.
Raven and Sydney enter a beauty pageant to help raise money for the Community Center.
Things get personal when Muffy and her younger sister Buffy also enter the pageant. This causes Raven and Muffy to become way too competitive, leading to everyone in the room quarreling — even Chelsea, Eddie, Stanley, Cory, Victor and the audience.
When Raven has a vision of Sydney releasing the rope that holds a giant globe that will fall on Buffy during the fight, she stops everyone from fighting. However, all 4 of the girls are immediately “disqualified for starting a fight”.
- Raven-Symoné as Raven Baxter
- Orlando Brown as Eddie Thomas
- Kyle Massey as Cory Baxter
- Anneliese van der Pol as Chelsea Daniels
- Rondell Sheridan as Victor Baxter