OVER THE COURSE OF A CAREER SPANNING SIX DECADES, Chuck Berry, arguably the most important figure in the development of rock & roll, has established a few firm rules he lives by. Among them: There will be no performance unless payment has been received in full, in cash. No limousines and no drivers: Mr. Berry prefers to drive himself while on tour. The opening band may not mention the name Chuck Berry during its set. And finally, never trust a journalist. Because of Rule Four, not only does Berry turn down most interview offers, but he has been known to chase journalists off the grounds of Berry Park, his estate near St. Louis. Read more.