After more than forty years of making a name for himself as one of the most important rock guitarists of our time, Eric Clapton is taking a trip down memory lane with a new book and a greatest hits CD compilation. 'Clapton: The Autobiography' is a revealing look at the highs and lows of the three-time Rock Hall of Famer's career and personal life, while the 'Complete Clapton' two-disc set is a musical retrospective spanning his days with the Yardbirds through his ventures as a solo artist. In this exclusive interview clip, Clapton tells Spinner the real story behind one of his best-loved songs, 'Layla.'