Imagine Dragons lead singer Dan Reynolds says their 2012 hit "Radioactive" is "a song about having an awakening; kind of waking up one day and deciding to do something new, and see life in a fresh way."
Tom Cochrane wrote "Life Is A Highway" to pull himself out of a funk following an exhausting humanitarian trip to Africa.
What #1 hit is built on a sample of another #1 hit? "Hypnotize" by The Notorious B.I.G., which gets its groove from "Rise," a chart-topper for Herb Alpert in 1979.
"MMMbop" by Hanson was so ubiquitous in 1997 that when the band appeared on SNL, they took part in a skit where Helen Hunt and Will Ferrell seek retribution by trapping them in an elevator and playing the song until they crack. "Now, you will suffer like we did," Hunt tells them.
The chorus in "September" by Earth, Wind & Fire is "Bada-Ya, dancing in September." Group leader Maurice White left it "Bada-Ya" instead of a real word because he never let a lyric get in the way of a groove.
Rod Stewart wrote "Maggie May" about the woman who deflowered him when he was 16.
How a country weeper and a blues number made "rolling stone" the most popular phrase in rock.
How did The Edge get his name? Did they name a song after a Tolkien book? And who is "Angel of Harlem" about?
Do you know who wrote Patti Smith's biggest hit? How about the Grease theme song? See if you can match the song to the writer.
The longtime Eagle talks about soaring back to his solo career, and what he learned about songwriting in the group.
The revered singer-songwriter talks inspiration and explains why she put a mahout in "Drop the Pilot."
Rob Halford dives into some of his Judas Priest lyrics, talking about his most personal songs and the message behind "You've Got Another Thing Comin'."