All Shook Up by Shelley Pearsall

13-year old Josh Greenwood is forced to move from Boston to Chicago to live with his divorced dad for a few months while his mother goes to Florida to help her mother recover from a fall. When he arrives at the airport he is shocked to discover that his dad has lost his job selling shoes and has become an Elvis impersonator complete with jet black hair and sideburns. As Josh starts the 7th grade at the new school, he is desperate to blend in and worries constantly that the other kids will discover what his dad does for a living. And to make matters worse, his dad's new girlfriend has a daughter, Ivory, who is in his class at school and who could spill the beans anytime. The situation comes to a head when Josh's dad is invited to perform at a program at his school and he goes too far trying to keep "Elvis" from showing up at his school.
Strengths: Humorous and told in a very realistic middle school voice where the main concern is fitting in and avoiding being embarrassed by your parents. It deals with very serious issues in a believable way. This book should appeal to boys as well as girls.
Weaknesses: Some of the readers may not be aware of who Elvis was and the impact he made on the world.