Ruby Rivera is a twelve-year-old superstar with millions of followers. Skylar Welshman is a seventh grader who wants to be cool–and she’s Ruby’s biggest fan. When Skylar and Ruby meet on the set of Ruby’s hit show, Ruby of the Lamp, and wish they could switch places … it happens!

Now Ruby is living Skylar’s life–going to a normal school, eating fro-yo, sleeping in, texting boys … it’s amazing. And being Ruby is even better than Skylar imagined–her fancy closet is huge, everyone wants to be her friend, and she gets to spend every day with Ryder Vance, her dreamy costar. Life is a blast!

But when Ruby finds herself dealing with mean girls and Skylar discovers that being a celebrity isn’t all red-carpet glamour, the girls start to wonder if being yourself isn’t so bad after all. Can they swap bodies again? Or are they stuck being each other forever?