The trail runs from flying saucer songs in the '50s, through Bowie, blink-182 and Katy Perry.
Richie talks about producing the first two Kiss albums, recording "Brother Louie," and the newfound appreciation of his rock band, Dust.
P.F. was a teenager writing hits and playing on tracks for Jan & Dean when he wrote a #1 hit that got him blackballed.
Michael tells the story of "Send Me On My Way," and explains why some of the words in the song don't have a literal meaning.
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).
Kristian talks songwriting technique, like how the chorus should redefine the story, and how to write a song backwards.