"Human" by The Killers was the most streamed song on Spotify in 2008, the year that the music streaming service was launched.
Meghan Trainor and her producer Kevin Kadish wrote "All About That Bass" for another artist to record, but after Epic Records boss LA Reid heard Meghan play a demo of the song on a ukulele, he signed her to his label and told her she should sing it.
The Ricky Martin song "She Bangs" found new life when William Hung performed it so horribly on a 2004 episode of American Idol that it went viral.
Bob Dylan was little known when he released "Blowin' In The Wind" so the cover versions - especially by Peter, Paul and Mary and Stan Getz - were much more popular at the time.
Sheryl Crow's "Soak Up The Sun" isn't as lighthearted as it seems: the song deals with the prevailing head-in-the-sand reaction to climate change.
Janet Jackson's "Rhythm Nation" was inspired by the tribes that came together at New York dance clubs.
Tom talks about the evolution of Cinderella's songs through their first three albums, and how he writes as a solo artist.
"Lullaby" singer Shawn Mullins on "Beautiful Wreck," beating the Devil, and his writing credit on the Zac Brown Band song "Toes."
Emilio talks about what it's like to write and perform with the Tower of Power horns, and why every struggling band should have a friend like Huey Lewis.
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.
Was a Beatles song a TV theme? And who came up with those Fresh Prince and Sopranos songs?
Starting in Virginia City, Nevada and rippling out to the Haight-Ashbury, LSD reshaped popular music.