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 EMF song "Unbelievable" samples the raunchy comic Andrew Dice Clay saying, "What the f--k was that!"
Don Johnson, who starred as Sonny Crockett in Miami Vice, was also a singer. He had a #5 hit in 1986 with "Heartbeat."
The line, "Gotta keep 'em separated" in "Come Out And Play" by The Offspring came to lead singer Dexter Holland when he was a medical student and needed to keep bacteria samples away from each other.
Lily Allen wrote "Something's Not Right" for the soundtrack of the Peter Pan prequel, Pan. The song was inspired by the heartache that Allen experienced after suffering a miscarriage when she was six months pregnant with her first child by husband Sam Cooper in 2010.
Johnny Cash promised to stay true to his first wife in "I Walk The Line," but when the song became a hit he found himself on the road, having an affair with June Carter, who became his second wife.
Ron Nevison explains in very clear terms the Quadrophenia concept and how Heart staged their resurgence after being dropped by their record company.
The Creed lead singer reveals the "ego and self-fulfillment" he now sees in one of the band's biggest hits.
Chris Stein of Blondie shares photos and stories from his book about the New York City punk scene.
He wrote "She Blinded Me With Science" so he could direct a video about a home for deranged scientists.
The Third Day frontman talks about some of the classic songs he wrote with the band, and what changed for his solo country album.
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.