Bono came up with the idea of focusing on a soldier's last thoughts as he dies from his wounds in the U2 song "White As Snow" after reading William Golding's 1956 novel Pincher Martin.
David Gilmour really was "Learning To Fly" when he co-wrote the Pink Floyd song - the aviation jargon came from his lessons.
"Dude (Looks Like A Lady)" by Aerosmith was inspired by Vince Neil from Motley Crue.
Dean wrote the screenplay and lyrics to all the songs in Footloose. His other hits include "Fame" and "All The Man That I Need."
Jim talks about the impact of "The Middle" and uses a tree metaphor to describe his songwriting philosophy.
Martyn talks about producing Tina Turner, some Heaven 17 hits, and his work with the British Electric Foundation.
The top chant artist in the Western world, Krishna Das talks about how these Hindu mantras compare to Christian worship songs.
Long before Eminem, Justin Bieber and Nicki Minaj created alternate personas, David Bowie, Bono, Joni Mitchell and even Hank Williams took on characters.
"Great songwriters don't necessarily have hit songs," says Chris. He's written a bunch, but his fans are more interested in the intricate jams.