Focusing exclusively on more than 1,000 musical endeavors shared between more than 300 artists, this updated continuation of the critically acclaimed Beatles Undercover contains new chapters, previously unpublished interviews, and exclusive firsthand information on the Fab Four from the artists who knew them best. An exhaustively researched, highly detailed discography of the Beatles’ musical contributions is also included, giving a clear look into their songwriting and recording processes. Many of the Beatles' contributions to other artists' recordings were done anonymously and are documented here for the first time, making this an extremely valuable book for any Beatles fan.