Meghan Trainor and her producer Kevin Kadish wrote "All About That Bass" for another artist to record, but after Epic Records boss LA Reid heard Meghan play a demo of the song on a ukulele, he signed her to his label and told her she should sing it.
Back To The Future wasn't the only movie where Michael J. Fox rocked out: He sang with Joan Jett in the 1987 movie Light Of Day, with a title track written by Bruce Springsteen.
Madonna's hit "Don't Tell Me" was written by her brother-in-law, Joe Henry, who has produced albums by Hugh Laurie and Bonnie Raitt.
One of the moodiest hits of the '90s is "Creep" by Radiohead. It was the group's first single, and to their dismay, it became their biggest hit - it wasn't the song they wanted to be known for.
An unexpected guest vocal: Marianne Faithfull on the Metallica song "The Memory Remains." A star in the '60s, this collaboration helped revive her career.
The video for "Informer" by Snow that ran on MTV was subtitled so viewers could understand what he was saying.
A selection of songs made to be terrible - some clearly achieved that goal.
The Canadian superstar talks about his sudden rise to fame, and tells the stories behind his hits "Sunglasses At Night," "Boy In The Box" and "Never Surrender."
The Garbage drummer/songwriter produced the Nirvana album Nevermind, and Smashing Pumpkins' Gish and Siamese Dream.
At 80 years old, Yoko has 10 #1 Dance hits. She discusses some of her songs and explains what inspired John Lennon's return to music in 1980.
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.
Since his debut single "I'm On Fire" in 1975, Dwight has been providing Spinal-Tap moments and misadventure.