"St. Elmo's Fire (Man In Motion)" was not written for the movie, but for Rick Hanson, a wheelchair athlete whose 1985 "Man In Motion" tour logged 24,856 miles on his wheelchair in 34 countries while raising $26 million for spinal cord research.
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.
"Anaconda" was originally recorded by Missy Elliott in 2012, but the rapper decided to shelf the track so it was re-recorded by Minaj two years later.
"Magic" was the first word to serve as both the title of a #1 hit (Olivia Newton-John's 1980 tune "Magic") and the name of an artist behind a chart-topping song (Magic!'s 2014 hit "Rude").
The guys who wrote "Take Me Out To The Ballgame" had never been to a baseball game but knew it was a good song topic.
Robert Plant's "Heaven Knows" is a satirical look at the '80s, when style seemed to trump substance.
Tom talks about the evolution of Cinderella's songs through their first three albums, and how he writes as a solo artist.
When he was playing Ozzfest with Black Label Society, a kid told Zakk he was the best Ozzy guitarist - Zakk had to correct him.
Elvis, Little Richard and Cheryl Cole have all sung about Teddy Bears, but there is also a terrifying Teddy song from 1932 and a touching trucker Teddy tune from 1976.
Johnny Depp, Angelina Jolie, Mila Kunis and John Malkovich are just a few of the film stars who have moonlighted in music videos.
In 1986, a Stephen King novella was made into a movie, with a classic song serving as title, soundtrack and tone.
Lots of life lessons in these Eagles lyrics - can you match them to the correct song?