That's so Raven: Dueling Divas - Book #8 (That's So Raven (Numbered Paperback))

When their teacher makes aremark about Chelsea being Raven’s “sidekick,” Chelsea is determined to dothings her way for once.  Raven goes along with Chelsea’s ideafor the opera they will perform in the Festival of the Classical Arts—until shegets a vision of them winning with her own idea. Now Raven and Chelsea are competing for same spot in the show!Plus, Raven does battle with one of the most popular girls in school when theyboth plan to have parties on the same night.