Soul music legend Bill Withers on how life experience and the company you keep leads to classic songs like "Lean On Me."
These overtly religious songs crossed over to the pop charts, despite resistance from fans, and in many cases, churches.
Jim talks about the impact of "The Middle" and uses a tree metaphor to describe his songwriting philosophy.
Scaramouch, a hoople and a superhero soundtrack - see if you can spot the real Queen stories.
He wrote "She Blinded Me With Science" so he could direct a video about a home for deranged scientists.
Bowie's "activist" days of 1964 led to Ziggy Stardust.