The Whitney Houston hit "I Have Nothing" was inspired by Elvis Presley, who dated the song's lyricist, Linda Thompson.
"Surf City" was recorded by Jan & Dean, but written by Brian Wilson of The Beach Boys. It was the first #1 hit Wilson wrote.
"The Candy Man" is the opening song in the 1971 movie Willie Wonka And The Chocolate Factory, but the version released as a single was by Rat Pack member Sammy Davis Jr. It was a #1 hit and became his signature song even though his audience was very adult.
The first big hit to blend EDM with country music was "Wake Me Up" by the Swedish DJ Avicii. He put the song together with Mike Einziger of Incubus and with Aloe Blacc, who sings on it.
Graham Nash wrote the domestic tranquility classic "Our House" about the house he shared with Joni Mitchell. It was a very very very fine house.
The line, "Gotta keep 'em separated" in "Come Out And Play" by The Offspring came to lead singer Dexter Holland when he was a medical student and needed to keep bacteria samples away from each other.
Harry Wayne Casey tells the stories behind KC and The Sunshine Band hits like "Get Down Tonight," "That's The Way (I Like It)," and "Give It Up."
Tom talks about the evolution of Cinderella's songs through their first three albums, and how he writes as a solo artist.
The Scorpions and UFO guitarist is also a very prolific songwriter - he explains how he writes with his various groups, and why he was so keen to get out of Germany and into England.
When singers started spoofing their own songs on Sesame Street, the results were both educational and hilarious - here are the best of them.
Daryl Hall's TV show is a hit, and he's been inducted into the Rock and Roll Hall of Fame - only one of these developments excites him.
Psychedelic Furs lead singer Richard Butler talks about their first album since 1991 and explains what's really going on in "Pretty In Pink."