"Forever" by Chris Brown was written for a Wrigley's Doublemint Gum commercial. The full song contains the gum's tagline: "Double your pleasure, double your fun."
The eerie percussion and guitar for Portsihead's "Sour Times" was sampled from Lalo Schifrin's "Danube Incident," music composed by the Argentine composer for an episode of Mission Impossible.
The dirty version of Cee-Lo Green's "Forget You" contains 16 F-bombs. He recorded a clean version as an afterthought, "just in case."
In "I Walk The Line," Johnny Cash hums before each verse. He did this to get his pitch, as the song changes key several times.
Miguel wrote "Adorn" about his girlfriend, the model and artist Nazanin Mandi, when he was returning home from a long trip and was anxious to see her.
A pre-famous Rupaul is in the video for "Love Shack" by The B-52s. He had a solo hit with "Supermodel" a few years later.
Shows like Dawson's Creek, Grey's Anatomy and Buffy the Vampire Slayer changed the way songs were heard on TV, and produced some hits in the process.
An interview with Frankie Valli, who talks about why his songs - both solo and with The Four Seasons - have endured, and reflects on his time as Rusty Millio on The Sopranos.
Pool balls, magpies and thorns without roses - how well do you know your Tom Waits lyrics?
From the cowbell on "Mississippi Queen" to recording with The Who when they got the wrong Felix, stories from one of rock's master craftsmen.
A top country songwriter, Barry talks about writing hits for Little Big Town, Tim McGraw and Jason Aldean.
When a waitress wouldn't take him home, Jack wrote what would become one of the Eagles most enduring hits.