Avril Lavigne has a perfume named after her song "Black Star." It smells much better than her Sk8er Boi scent, which reeks of Axe body spray and road grime.
"How Sweet It Is To Be Loved By You" by Marvin Gaye was inspired by Jackie Gleason's saying, "How Sweet It Is!"
"Here Comes Your Man" is the closest the Pixies came to a hit in America. It was rumored to be about a drug dealer, but Black Francis says it's just a story about some hobos who travel by train and die in an earthquake.
Pitbull is the lead artist on his Kesha collaboration "Timber," a #1 hit in 2014, but he only raps for about a minute on the song - Kesha does most of the work.
The lyrics to "Heartbreak Hotel" were written by a steel guitar player who was once a dishwasher repairman. He was inspired by a newspaper story about a man who killed himself and left behind a note saying only, "I walk a lonely street."
Eric Clapton wrote "Layla" about his love for Pattie Harrison, who was married to George Harrison at the time. He eventually married Pattie, and managed to stay friends with George.
One of the most successful songwriters in the business, Desmond co-wrote "Livin' La Vida Loca," "Dude (Looks Like A Lady)" and "Livin' On A Prayer."
The Stax legend on how he cooked up "Green Onions," the first time he and Otis Redding saw hippies, and if he'll ever play a digital organ.
Soul music legend Bill Withers on how life experience and the company you keep leads to classic songs like "Lean On Me."
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.
Martyn talks about producing Tina Turner, some Heaven 17 hits, and his work with the British Electric Foundation.
The man who brought us "Red Skies" and "Saved By Zero" is now an organic farmer in France.