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.
The guys from Chic wrote "Le Freak" as a message to a doorman who wouldn't let them into a club. Originally, it was "F--- Off."
Ronnie Spector nailed the vocal for The Ronettes song "(Walking) In the Rain" on the first take -- unheard of in the perfectionist producer Phil Spector's world.
"Dark Fantasy" by Kanye West opens with a reinterpretation of Cinderella as read by Nicky Minaj.
Celine Dion's 1998 festive tune "The Magic of Christmas Day (God Bless Us Everyone)" came from an unlikely source. It was penned by Dee Snider of the heavy metal band Twisted Sister.
"Master Blaster (Jammin')" is Stevie Wonder's tribute to Bob Marley, released less than a year before Marley died.
Tom stopped performing Thompson Twins songs in 1987, in part because of their personal nature: "Hold Me Now" came after an argument with his bandmate/girlfriend Alannah Currie.
Dwarfs on stage with an oversize Stonehenge set? Dabbling in Satanism? Find out which Spinal Tap-moments were true for Black Sabbath.
Surprise exits, a catfight and some very memorable performances make our list of the most memorable Idol moments.
Billie Jean, Delilah, Sara, Laura and Sharona - do you know who the girls in the songs really are?
U2, Carly Simon, Joanna Newsom, Brian Wilson and Fiona Apple have all gone to Van Dyke Parks to make their songs exceptional.
If counterpoint and polyrhythms are your thing, you might love these guys. Even by Progressive Rock standards, they were one of the most intricate bands of the '70s. Then their lead singer gave us Bon Jovi.