Rascal Flatts is one of those bands whose most famous song is a cover. "Life Is A Highway," which they recorded for the movie Cars in 2006, was written and originally released by Tom Cochrane in 1991.
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."
Ann Peebles' "I Can't Stand The Rain" originated from a comment made by the singer to her husband, Don Bryant, when they were preparing to head out to a blues show and it began tipping down with rain.
Miley Cyrus didn't write "Wrecking Ball" but could very much relate to it. She was having problems in her relationship with Liam Hemsworth, so the theme of giving your love only to have it wrecked really resonated with her.
At the end of the Doors song "Touch Me," Jim Morrison chants, "Stronger than dirt!" The line is from an Ajax commercial where a white knight rides around destroying dirt.
The Beastie Boys' "No Sleep Till Brooklyn" is a parody of heavy metal music. Kerry King of Slayer played guitar on the track - purposefully out of tune in parts.
Dave reveals the inspiration for "Feelin' Alright" and explains how the first song he ever wrote became the biggest hit for his band Traffic.
John tells the "St. Elmo's Fire (Man In Motion)" story and explains why he disappeared for so long.
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.
An interview with Dr. John Covach, music professor at the University of Rochester whose free online courses have become wildly popular.
The "A Thousand Miles" singer on what she thinks of her song being used in White Chicks and how she captured a song from a dream.
Scaramouch, a hoople and a superhero soundtrack - see if you can spot the real Queen stories.