David Bowie's "Heroes" is about his producer Tony Visconti and his girlfriend, but Bowie didn't admit this until the '00s, since Visconti was married at the time.
Lily Allen wrote "Something's Not Right" for the soundtrack of the Peter Pan prequel, Pan. The song was inspired by the heartache that Allen experienced after suffering a miscarriage when she was six months pregnant with her first child by husband Sam Cooper in 2010.
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.
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 Black Eyed Peas shot the video for "Just Can't Get Enough" in Japan just a week before a devastating earthquake hit the country.
The first female rapper to perform on a #1 hit? Surprisingly, it's Lil' Kim with the 2001 remake of "Lady Marmalade" for the movie Moulin Rouge. She was was joined on the track by Christina Aguilera, Missy Elliott, Pink and Mya.
"25 or 6 to 4" to "Semi-Charmed Life" - see if you can spot the songs that are really about drugs.
Danny played guitar on Sweet Baby James, Tapestry, and Running On Empty. He also co-wrote many hit songs, including "Dirty Laundry," "Sunset Grill" and "Tender Is The Night."
Webb talks about his classic songs "By the Time I Get to Phoenix," "Wichita Lineman" and "MacArthur Park."
Scaramouch, a hoople and a superhero soundtrack - see if you can spot the real Queen stories.
Songwriting Hall of Famer Linda Perry talks about her songs "What's Up" and "Beautiful," her songwriting process, and her move into film music.
