Starting in Virginia City, Nevada and rippling out to the Haight-Ashbury, LSD reshaped popular music.
Songs that seem to glorify violence against women are often misinterpreted - but not always.
Wilder's hit "Break My Stride" had an unlikely inspiration: a famous record mogul who rejected it.
Greg talks about writing songs of "universal truth" for King Crimson and ELP, and tells us about his most memorable stage moment (it involves fireworks).
Can you be married in one country but not another? Only if you're part of a gay couple. One of the first famous singers to come out as a lesbian, Janis wrote a song about it.
Gramm co-wrote this gorgeous ballad and delivered an inspired vocal, but the song was the beginning of the end of his time with Foreigner.