"Sing" was inspired by a girl that Ed Sheeran met in Las Vegas in the summer of 2013, when "one thing led to another and now she's kissing my mouth."
"Whip It" by Devo is about the rah-rah affirmations delivered by politicians and motivational speakers who often have ulterior motives.
Jim Croce was killed in a plane crash on September 30, 1973. A few weeks later, his song "Time In A Bottle" hit #1.
David Gilmour really was "Learning To Fly" when he co-wrote the Pink Floyd song - the aviation jargon came from his lessons.
"Toxic" was the most-searched song on Google in 2004 and helped Spears become the most-searched artist that year, a title she held from 1999-2001.
Bruce Springsteen wrote "Blinded By The Light," which was a #1 hit for Manfred Mann's Earth Band. The "Madman Drummers" line is a reference to Springsteen's first E-Street drummer, Vinnie "Mad dog" Lopez.
Richie talks about the impact of "Amazed," and how his 4-year-old son inspired another Lonestar hit.
Martyn talks about producing Tina Turner, some Heaven 17 hits, and his work with the British Electric Foundation.
Laura Nyro talks about her complex, emotionally rich songwriting and how she supports women's culture through her art.
In her days with The Runaways, Joan Jett saw The Arrows perform "I Love Rock And Roll," which Alan Merrill co-wrote - that story and much more from this glam rock pioneer.
Brenda talks about the inspiration that drove her to write hit songs like "Get Here" and "Piano in the Dark," and why a lack of formal music training can be a songwriter's best asset.
Songs that seem to glorify violence against women are often misinterpreted - but not always.