MIDDLE SCHOOL 3 : My Brother Is a Big Fat Liar - Hachette

"From blockbuster author James Patterson comes the third installment in the number-one New York Times best-selling Middle School series!
Georgia Khatchadorian plans to excel at Hills Village Middle School in all the places her troublemaking brother failed. She's even bet him that she'll quickly become one of the most popular girls in school. But Rafe left a big mark at HVMS, and no one will give Georgia a chance!
Even worse, Rafe has sneakily signed up her band to play at the school dance, and she's terrified to embarrass herself in front of the snooty ""Princesses"" who run the school and the boy who's caught her eye. Will she be able to overcome her fears and win her bet with Rafe? Find out THE TRUTH about Rafe Khatchadorian's sister in the first Middle School story from the point of view of the hilarious Georgia - -a girl who's ready to speak her mind!"