Back after being at Abbey Road on the River last week, the Fab Fourum co-hosts Mitch Axelrod, Rob Leonard, Tony Traguardo and Ken Michaels meet up with author Kristofer Engelhardt to discuss his core collection book, "The Beatles Deeper Undercover," the sequel to his earlier "Beatles Undercover." The new book has expanded information from the earlier book on the Beatles' recording sessions outside the band.

Engelhardt talks in detail about how he did some of his deep-down research for the book and it's a very interesting discussion. The book has some fascinatingly obscure information and Engelhardt has really done a great job. His story, as told here, is equally fascinating.

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