Intro. The striking of Elvis Presley's “Hound Dog” from the most recent Rolling Stone list of pop's five hundred greatest songs, replaced by Big Mama Thornton's version, puts a subject on the table: how we think about rock and roll in an era when the punk critique, over style, seems almost quaint next to questions of identity and musical appropriation. As somebody who grew up in the earlier paradigm, the author wants to use this book to confront these issues.