Chaka Khan's hit "I Feel For You" was written and originally recorded by Prince four years before she covered it.
Mary J. Blige introduced three new words with her hit "Family Affair": hateration, holleration and dancerie.
Billy Joel's "Uptown Girl" is about Christie Brinkley, who he married, but it started as a song about Elle McPherson, who he also went out with.
The Exorcist theme music is a portion of "Tubular Bells," a 25-minute song released by 19-year-old Mike Oldfield.
The Kate Bush song "Why Should I Love You?" is a collaboration with Prince. He completely re-worked her demo, so Bush spent a lot of time piecing it back together to keep her imprint.
The woman "singing" in the video for Technotronic's "Pump Up The Jam" didn't speak English. She was used just for her look, and also appeared on the album cover.
The British reggae legend tells the story of his #1 hit "Close To You," talks about his groundbreaking Shabba Ranks collaboration "Housecall," and discusses his latest project with Robin Trower.
Kooper produced Lynyrd Skynyrd, played with Dylan and the Stones, and formed BS&T.
Roger reveals the songwriting formula Clive Davis told him, and if "Eight Miles High" is really about drugs.
We've heard of artists putting their hearts into their music, but some take it literally.
Ian talks about his 3 or 4 blatant attempts to write a pop song, and also the ones he most connected with, including "Locomotive Breath."
Director Mark Pellington on Pearl Jam's "Jeremy," and music videos he made for U2, Jon Bon Jovi and Imagine Dragons.