Frank Sinatra was 64 when he had his last hit: "New York, New York." The song pegged him to New York City, leaving Las Vegas to Elvis.
A key line in "Africa" is "I seek to cure what's deep inside, frightened of this thing that I've become," which is about drifting away from what you really want in life. Toto keyboard player David Paich, who wrote the song, felt his work was consuming him.
Glen Hansard and Marketa Irglova starred in the movie Once, which featured their song "Falling Slowly." Bob Dylan liked the song and movie so much he gave them an opening slot on his tour.
Beyoncé married Jay-Z five months before releasing "Single Ladies (Put a Ring On It)," a song she sang in character as her alter-ego, Sasha Fierce.
"Mercedes Boy" by Pebbles is about a real guy she fell in love with - they both drove Mercedes when she wrote it.
Cain talks about the divine inspirations for "Don't Stop Believin'" and "Faithfully."
JJ talks about The Stranglers' signature sound - keyboard and bass - which isn't your typical strain of punk rock.
Richie talks about the impact of "Amazed," and how his 4-year-old son inspired another Lonestar hit.
These overtly religious songs crossed over to the pop charts, despite resistance from fans, and in many cases, churches.
Webb talks about his classic songs "By the Time I Get to Phoenix," "Wichita Lineman" and "MacArthur Park."
Did Eric Clapton really steal George's wife? What's the George Harrison-Monty Python connection? Set the record straight with our Fact or Fiction quiz.