Janet Jackson's "Alright" video features Cab Calloway and Cyd Charisse, stars of musicals she loved as a kid.
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.
If what you get equals what you give away, you might as well give it all away. That's the concept behind "Give It Away" by Red Hot Chili Peppers.
Paula Abdul's "Forever Your Girl" was written by Oliver Leiber, who despite being the son of Jerry Leiber from Leiber & Stoller, was an unknown songwriter.
Post Malone came up with "White Iverson" after getting braids in his hair and thinking they looked like basketball legend Allen Iverson's signature cornrows.
Meghan Trainor and her producer Kevin Kadish originally wrote "All About That Bass" for another artist to record. However, after Epic Records boss LA Reid heard Meghan play a demo of the song on a ukulele, he signed the young songwriter to his label and told her she should sing it.
In her days with The Runaways, Joan Jett saw The Arrows perform "I Love Rock And Roll," which Alan Merrill co-wrote - that story and much more from this glam rock pioneer.
Dean's saga began with "Ariel," a song about falling in love with a Jewish girl from New Jersey.
The lead singer/lyricist for Anberlin breaks down "Impossible" and covers some tracks from their 2012 album Vital.
Dennis DeYoung explains why "Mr. Roboto" is the defining Styx song, and what the "gathering of angels" represents in "Come Sail Away."
Ozzy biting a dove? Alice Cooper causing mayhem with a chicken? Creed so bad they were sued? See if you can spot the real concert mishaps.
