John Fogerty on CCR's 'Cosmo's Factory': 'I was sort of an unstoppable force'

In the canon of American rock-and-roll, how many great bands were as efficient as Creedence Clearwater Revival? In its six years together, which bridged the '60s and '70s, the John Fogerty-led group released seven albums and was responsible for classic rock radio staples such as "Proud Mary, "Who'll Stop the Rain" and "Fortunate Son" along with great extended guitar workouts such as "Keep on Chooglin'" and "Ramble Tamble." The latter, a seven-minute stomper, is the lead track off 1970's "Cosmo's...