I'm Not Megan (Book)

I'm Not Megan is the fourth book of the Sweet L.A. Life series.'

Book Summary
Bally High's 80's dance is coming up. Megan Hale can't wait to dance with the hot classmate, Jack Wheeler and Megan's twin sister, Jenny wants to show off her new sequin dress, but she also wants to go to the dance with Jack. After learning that they want to go to the dance with Jack, the twins fight and Megan ends up slipping and losing her memory.