Pink Floyd's "Shine On You Crazy Diamond" is about their founding member Syd Barrett, who became an acid casualty. Notice the S-Y-D in the title.
The Nicolette Larson hit "Lotta Love" was written by Neil Young, who recorded a very different version of the song.
Paul McCartney wrote "Hey Jude" to comfort John Lennon's 5-year-old son Julian, whose parents were getting a divorce.
Don't play "I Will Always Love You" at your wedding - Dolly Parton wrote it about leaving someone behind to strike out on her own.
KT Tunstall's "Suddenly I See" was inspired by Robert Mapplethorpe's photograph of Patti Smith on the cover of her album Horses.
Carly Simon wrote "Anticipation" when Cat Stevens was late for their first date. She was "anticipating" his arrival and set down with her guitar to calm her nerves.
The guy who brought us "Stacy's Mom" also wrote the Jane Lynch Emmy song and Stephen Colbert's Christmas songs.
Rob Halford, Richie Faulkner and Glenn Tipton talk twin guitar harmonies and explain how they create songs in Judas Priest.
Rob Thomas on his Social Distance Sessions, co-starring with a camel, and his friendship with Carlos Santana.
Rufus Wainwright on "Hallelujah," his album Unfollow The Rules, and getting into his "lyric trance" on 12-hour walks.
"London Bridge," "Ring Around the Rosie" and "It's Raining, It's Pouring" are just a few examples of shockingly morbid children's songs.
The flautist frontman talks about touring with Led Zeppelin, his contribution to "Hotel California", and how he may have done the first MTV Unplugged.