How does Olivia describe the way the Lemonade Mouth band began in the book, Lemonade Mouth: Adapted Movie Tie-in Edition?

Olivia says that Lemonade Mouth was born at detention where she met Mo Banerjee, Wen, Stella, and Charlie. When Mrs. Reznik stepped out to take a cell phone call, the kids started to make music to replace the music of the radio. They created such a strange symphony between them that they disn't even care when Mrs. Reznik walked back into the room.