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 very American song "What Made Milwaukee Famous" was never a big hit in the US, but Rod Stewart made it famous in the UK.
"Walking In Memphis" isn't so much about Memphis as it is The Hollywood Cafe in Mississippi, where Marc Cohn encountered an older woman named Murial playing piano.
One of the great "we're all going down" songs is "Ship Of Fools" by World Party, written when Margaret Thatcher was in power in England.
Jethro Tull lead singer Ian Anderson wrote "Aqualung" after looking at pictures of homeless men that his wife took. She got a co-writing credit on the song.
Paul Stanley and Gene Simmons of Kiss wrote "Rock And Roll All Nite" as a "rallying cry for all of our fans." In later years, members of Kiss wrote songs separately.
Nick made some of the biggest videos on MTV, including "The Final Countdown," "Heaven" and "Don't Know What You Got (Till It's Gone)."
The "Midnight At The Oasis" singer is an Old Time gal. She talks about her jug band beginnings and shares a Dylan story.
The drummer for Anthrax is also a key songwriter. He explains how the group puts their songs together and tells the stories behind some of their classics.
Since emerging from MySpace with her hit "Bubbly," Colbie has become a top songwriter, even crafting a hit with Taylor Swift.
Justin wrote the classic "Nights In White Satin," but his fondest musical memories are from a different decade.
The former Metallica bassist talks about his first time writing a song with James Hetfield, and how a hand-me-down iPad has changed his songwriting.