Kacey Musgraves originally offered "Follow Your Arrow" to her friend Katy Perry. However, Perry thought Musgraves should record the song herself as it seemed, "like something that you would totally say."
If you have a whole day to kill, you can check out the full version of Pharrell Williams' "Happy" music clip, which was the world's first ever 24-hour music video.
"Zombie" by The Cranberries is about an IRA bombing in England that killed two children.
"Mercedes Boy" by Pebbles is about a real guy she fell in love with - they both drove Mercedes when she wrote it.
Mariah Carey and P. Diddy show up in the Mary J. Blige "No More Drama" video, since they were going through Shakespeare-level drama.
Bob was the bass player and lyricist for the first two Ozzy Osbourne albums. Here's how he wrote songs like "Crazy Train" and "Mr. Crowley" with Ozzy and Randy Rhoads.
If the name Citizen Dick means anything to you, there's a chance you'll get some of these right.
Richie talks about producing the first two Kiss albums, recording "Brother Louie," and the newfound appreciation of his rock band, Dust.
How well do you know your protest songs (including the one that went to #1)?
The Cult frontman tells who the "Fire Woman" is, and talks about performing with the new version of The Doors.
