Episode 99 of "That's so Raven"
s04e20 Teacher's Pet
Title: Teacher's Pet
Original Air Date: 01/15/2007
Plot Outline:
When Raven is on her way to History class she bonds with a new girl named Courtney. Little does she know Courtney is actually her new History teacher. Meanwhile, Cory auditions girls to find a new lead singer, but the juicer insists that he be the new lead singer
