One of the greatest stars of the rock & roll era, Elton John exploded like a supernova in the early 1970s and sustained a career that kept him at the top of the charts for the next five decades. He had a Billboard Top 40 hit single every year between 1970 and 1996, a sign that he knew how to both change with the times and mold the times to fit him. John's earliest records were part of the moody, introspective post-'60s singer/songwriter movement, but once he had a hit with "Your Song," the pianist revealed he could also craft Beatles-like pop and pound out rockers with equal a...