​ Guest: Jim Berkenstadt has spent a lifetime researching, writing, and consulting in pop music history. His books on the unreleased recordings of The Beatles ("Black Market Beatles") and the making of Nirvana's seminal album Nevermind are critically acclaimed. Berkenstadt has served as a consultant to The Beatles (Apple Corps Ltd.), George Harrison, The Traveling Wilburys, the band Garbage, and many International Record Labels.

He is currently the co-star of two pop culture TV series on the Reelz Channel: Celebrity Legacies and Celebrity Damage Control. As founder of Rock And Roll Detective, Berkenstadt's firm offers a number of specialized and confidential services to music artists, record labels, music download sites, TV and film productions, auction houses, and museums.