Will.I.am, literally dreamt up "I Gotta Feelin'." Said the Black Eyed Pea: "Have you ever had a dream where there's a melody in your dream? I'll wake up out of my sleep and record that! 'I Gotta Feelin' was one of those songs."
Thirty years after Jimi Hendrix played "Fire" at Woodstock, Red Hot Chili Peppers played it at Woodstock '99, but this time the unruly crowd actually set fires and looted.
One of Tom Petty's most personal songs is "Room At The Top," which he stopped performing because it brought back painful memories.
Paul McCartney's favorite song that he wrote for someone else is Cilla Black's 1968 UK Top 10 hit "Step Inside Love."
Cyndi Lauper came up with the title "Time After Time" when she saw it in TV Guide magazine. It's the name of a 1979 movie about a man who invents a time machine.
The first popular song to use the phrase "Heavy Metal" was "Born To Be Wild" by Steppenwolf, which was featured in the movie Easy Rider.
These overtly religious songs crossed over to the pop charts, despite resistance from fans, and in many cases, churches.
"Mr. Jones" took on new meaning when the song about a misguided view of fame made Adam famous.
When you free your mind, your ass may follow, but you have to make sure someone else doesn't program it while it's wide open.
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."
Rosanne talks about the journey that inspired her songs on her album The River & the Thread, including a stop at the Tallahatchie Bridge.
The in-depth discussion about the making of Jesus Christ Superstar with Ted Neeley, who played Jesus in the 1973 film.