Joni Mitchell wrote "Woodstock" - the most popular song about the festival - but didn't attend the event because she was booked on The Dick Cavett Show.
The Annie Lennox hit "No More I Love You's" is a cover, originally sung by a man.
The closing lyrics in "One Week" by Barenaked Ladies are "Birchmount Stadium, home of the Robbie," which refers to a soccer tournament in Ontario.
Madonna's hit "Don't Tell Me" was written by her brother-in-law, Joe Henry, who has produced albums by Hugh Laurie and Bonnie Raitt.
Ellie Goulding's hit song "Lights" is about her fear of the dark, which forces the singer to sleep with the lights on.
Puff Daddy didn't get permission to sample the Police song "Every Breath You Take" on his Notorious B.I.G. tribute "I'll Be Missing You," but he later reached an agreement and even performed the song with Sting.
The drummer and one of the primary songwriters in Grand Funk talks rock stardom and Todd Rundgren.
The longtime Eagle talks about soaring back to his solo career, and what he learned about songwriting in the group.
"Lullaby" singer Shawn Mullins on "Beautiful Wreck," beating the Devil, and his writing credit on the Zac Brown Band song "Toes."
Daniel Lanois on his album Heavy Sun, and the inside stories of songs he produced for U2, Peter Gabriel, and Bob Dylan.
Rick has a surprising dark side, a strong feminine side and, in a certain TV show, a naked backside. But he still hasn't found Jessie's Girl.
When he was asked to write a song for the Singles soundtrack, Mark thought the Seattle grunge scene was already overblown, so that's what he wrote about.