"London Calling" by The Clash was written amid widespread fears that the Thames River was going to flood the city.
The Texas songwriter Jerry Jeff Walker wrote "Mr. Bojangles" after a weekend in jail where a fellow inmate told him his life story.
At the end of AC/DC's "Night Prowler," you hear Bon Scott say, "Shazbot, Nanu Nunu." Those were Robin Williams' sayings on his TV show Mork & Mindy. Scott was a big fan.
"We're An American Band" by Grand Funk describes real events on their 1972 tour, including an encounter with a legendary groupie called "Sweet Connie."
Christina Aguilera did her "Beautiful" vocal in one take; the opening line, "Don't look at me," is something she said to her friend in the studio who was there to offer support.
Paul Stanley and Gene Simmons of Kiss wrote "Rock And Roll All Nite" as a "rallying cry for all of our fans." In later years, members of Kiss wrote songs separately.
Doors expert Jim Cherry, author of The Doors Examined, talks about some of their defining songs and exposes some Jim Morrison myths.
We ring the Hell's Bells to see what songs and rockers are sincere in their Satanism, and how much of it is an act.
"When seeds that you sow grow by the wicked moon/Be sure your sins will find you out/Your past will hunt you down and turn to tell on you."
Chad tells tales from his time as drummer for Nirvana, and talks about his group Before Cars.
Dan cracked the Top 40 with "Ritual," then went to India and spent 2 hours with the Dalai Lama.
Medley looks back on "Unchained Melody" and "You've Lost That Lovin' Feelin'" - his huge hits from the '60s that were later revived in movies.