His song "Into The Night" is one of the most-played of all time. For Benny, it took him to hell and back.
The Jayhawks' song "Big Star" has special meaning to Gary, who explains how longevity and inspiration have trumped adulation.
One of the first successful female singer-songwriters, Janis had her first hit in 1967 at age 15.
After studying in Paris with a famous composition teacher, Charles became the most successful writer of TV theme songs.
The Scorpions and UFO guitarist is also a very prolific songwriter - he explains how he writes with his various groups, and why he was so keen to get out of Germany and into England.
In this talk from the '80s, the Kansas frontman talks turning to God and writing "Dust In The Wind."