Ariana Grande's collaboration with Zedd, "Break Free" came about after the Russian-German producer overheard Grande performing at a label showcase while he was backstage, and he mentioned to his team that he wanted to work with her.
David Gilmour really was "Learning To Fly" when he co-wrote the Pink Floyd song - the aviation jargon came from his lessons.
When the Velvet Underground song "Heroin" got screechy, Maureen Tucker stopped drumming, figuring it would bust the take, but her bandmates kept going. You can hear it at the 5:20 mark.
Sia Furler originally sent "Pretty Hurts" to Katy Perry, but she didn't see the email, so Beyonce ended up recording it instead.
Jean-Claude Van Damme was an extra in the video for Ollie & Jerry's “Breakin'... There's No Stopping Us” and he can be seen at point dancing in the background.
Bob Marley's backup singers, The I Threes, claim they are the "Three Little Birds" in his famous song.
The Reverend rants on psychobilly and the egghead academics he bashes in one of his more popular songs.
On Glen's résumé: hit songwriter, Facebook dominator, and member of Styx.
The longtime BS&T frontman tells the "Spinning Wheel" story, including the line he got from Joni Mitchell.
Pool balls, magpies and thorns without roses - how well do you know your Tom Waits lyrics?
Are classic songs like "Over The Rainbow" and "Take Me Out to the Ballgame" in the public domain?
The revered singer-songwriter talks inspiration and explains why she put a mahout in "Drop the Pilot."