"Oh Well," from their 1960s Peter Green era, is the only Fleetwood Mac song played in concert in every decade they toured.
"Whip It" by Devo is about the rah-rah affirmations delivered by politicians and motivational speakers who often have ulterior motives.
"Dude (Looks Like A Lady)" by Aerosmith was inspired by Vince Neil from Motley Crue.
Jay-Z's version of "99 Problems" is a cover of a 1993 song by Ice-T with the lyrics changed to be about Jay's rise to fame.
Adele isn't a ghost when she sings, "Hello from the other side" - it means the "other side of becoming an adult."
Zach Bryan and Kacey Musgraves had both gone through divorces when they wrote and recorded the wrenching duet "I Remember Everything." It was the first #1 Hot 100 hit for each of them.
JJ talks about The Stranglers' signature sound - keyboard and bass - which isn't your typical strain of punk rock.
Michelle Branch talks about "Everywhere," "The Game Of Love," and her run-in with a Christian broadcasting network.
"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.
Some songs get a second life when they find a new audience through a movie, commercial, TV show, or even the Internet.
Cain talks about the divine inspirations for "Don't Stop Believin'" and "Faithfully."
Fiona's highly-anticipated third album almost didn't make it. Here's how it finally came together after two years and a leak.