Katie and Suzanne are so excited-they won tickets to see their favorite rock group, the Bayside Boys, at the Cherrydale Arena! And not only do they get to see the show, but they get to attend the dress rehearsal and go backstage to hang out with the group! But when the magic wind turns Katie into one of the band members in the middle of the rehearsal, she manages to break up the band just before the big show! Will Katie be able to get the Bayside Boys back together again?