Dire Straits frontman Mark Knopfler got the idea for "Money For Nothing" after overhearing delivery men in a New York department store complain about their jobs while watching MTV.
Johnny Cash's wife, June Carter, wrote "Ring Of Fire" about their relationship.
Andre 3000 played all the instruments on Outkast's "Hey Ya" except bass. Aaron Mills from Cameo played that.
Michael Jackson's "Human Nature" was written by the keyboard player from Toto, who was working on the Thriller album.
David Bowie's "Station to Station" is over 10 minutes long. Bowie was doing a lot of drugs at the time and later said, "I have only flashes of making it."
Ellie Goulding's hit single "Burn" was originally demoed by Leona Lewis for her 2011 Glassheart album. She scrapped the tune when the project was retooled to include more ballads.
Iron Maiden, Adele, Toto, Eminem and Earth, Wind & Fire are just some of the artists with songs directly inspired by movies - and not always good ones.
The Doobies guitarist and lead singer, Tom wrote the classics "Listen To The Music," "Long Train Runnin'" and "China Grove."
Bowie's "activist" days of 1964 led to Ziggy Stardust.
Fagen talks about how the Steely Dan songwriting strategy has changed over the years, and explains why you don't hear many covers of their songs.
Scott was Stevie Wonder's bass player before becoming a top session player. Hits he played on include "I Will Survive," "Being With You" and "Sara Smile."
The former Metallica bassist talks about his first time writing a song with James Hetfield, and how a hand-me-down iPad has changed his songwriting.