Beyonce Knowles and Michelle Williams wrote "Girl" for Kelly Rowland as an encouragement for her to end her relationship with a verbally and physically abusive boyfriend.
War got the idea for "Why Can't We Be Friends?" when they were traveling in Japan and found they had a kinship with the citizens even though they didn't speak the same language.
Jay-Z was going to ask Mary J. Blige to duet on "Empire State of Mind," but he decided on Alicia Keys when he heard the piano stabs on the track.
Billy Joel's song "Allentown" was written as "Levittown," which is the town in Long Island where he grew up. He got the idea to change it after taking a trip to Pennsylvania.
Bruno Mars' "Just The Way You Are" was originally written with Cee-Lo Green in mind, but the Gnarls Barkley singer didn't feel it was right for him.
Katy Perry co-wrote Iggy Azalea's hit single "Black Widow." Perry was originally going to sing on the track, but she couldn't fit it into her schedule, so Rita Ora provided the sung vocals instead.
Even before Soundgarden wrote a song about him, Artis was the most famous spoon player of all time. So why has he always been broke?
Katy Perry mentions McDonald's, Beyoncé calls out Red Lobster, and Supertramp shouts out Taco Bell - we found the 10 restaurants most often mentioned in songs.
How Bing Crosby, Les Paul, a US Army Signal Corps Officer, and the Nazis helped shape rock and Roll.
Christopher Cross with Deep Purple? Kenny Loggins in Caddyshack? A Fact or Fiction all about yacht rock and those who made it.
"Missing You" was a spontaneous outpouring of emotion triggered by a phone call. John tells that story and explains what MTV meant to his career.
On the "schizoid element" of his lyrics, and a famous line from "Everything Zen."
