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.
"Piano Man" was inspired by Billy Joel's time playing at a piano bar in Los Angeles. The "real estate novelist" was a guy who always talked about writing a book, but spent all his spare time in the bar.
An unexpected guest vocal: Marianne Faithfull on the Metallica song "The Memory Remains." A star in the '60s, this collaboration helped revive her career.
A 2011 Gold's Gym poll found "Stronger" by Kanye West the best song to work out to. Second place was the Rocky theme.
The chorus in "September" by Earth, Wind & Fire is "Bada-Ya, dancing in September." Maurice White left it "Bada-Ya" instead of a real word because he never let a lyric get in the way of a groove.
"Fight The Power" was written for the Spike Lee movie Do The Right Thing. It opens the film and serves as the motif.
Eddie (played by Johnny Depp in the video) found fame fleeting, but Chuck Berry's made-up musician fared better.
The first of Billy's five #1 hits was the song that propelled Madonna to stardom. You'd think that would get you a backstage pass, wouldn't you?
Dean's saga began with "Ariel," a song about falling in love with a Jewish girl from New Jersey.
Does he have beef with Gaga? Is he Sean Lennon's godfather? See if you can tell fact from fiction in the Elton John edition.
In this quiz, spot the artist who put Romeo into a song lyric.
He wrote "She Blinded Me With Science" so he could direct a video about a home for deranged scientists.