The disco song "Good Tmes" by Chic was a huge influence on early rap, providing the bassline for "Rapper's Delight."
Train wrote the 2011 song "Brand New Book" for the TV show The Biggest Loser - part of the song was used in the opening credits.
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.
"Tainted Love" started as a 1964 soul song by Gloria Jones, became a huge hit when Soft Cell covered it in 1981, and was the basis for Rihanna's 2006 #1 "S.O.S. (Rescue Me)."
The Black Eyed Peas shot the video for "Just Can't Get Enough" just a week before the 2011 earthquake in Japan.
The video for "Informer" by Snow that ran on MTV was subtitled so viewers could understand what he was saying.
Rosanne talks about the journey that inspired her songs on her album The River & the Thread, including a stop at the Tallahatchie Bridge.
Before he was the champ, Ali released an album called I Am The Greatest!, but his musical influence is best heard in the songs he inspired.
The Red Hot Chili Peppers have some rather unusual song titles - see if you can spot the real ones.
Webb talks about his classic songs "By the Time I Get to Phoenix," "Wichita Lineman" and "MacArthur Park."
A top New York studio musician, Ralph played guitar on many '60s hits, including "Lightnin' Strikes," "A Lover's Concerto" and "I Am A Rock."
Before "Rap" was a form of music, it was something guys did to pick up girls in nightclubs. Donnie talks about "The Rapper" and reveals the identity of Leah.