The models in Robert Palmer's iconic "Addicted To Love" video were chosen in part because they couldn't play music, so they're all playing and moving to different rhythms.
The Whitney Houston hit "I Have Nothing" was inspired by Elvis Presley, who dated the song's lyricist, Linda Thompson.
The Kate Bush song "Running Up That Hill" is about making a deal with God to switch lives with your partner so there would be no more misunderstandings.
The game Lana Del Rey sings about in "Video Games" is World of Warcraft - her ex used to play it all the time.
"Cigarettes And Chocolate Milk" describes a time in Rufus Wainwright's life when he found himself hungover and pounding chocolate milk to feel better. It didn't work, so he smoked a cigarette, which is when he realized his addictive personality could be a problem.
The Annie Lennox hit "No More I Love You's" is a cover, originally sung by a man.
Before he was the champ, Ali released an album called I Am The Greatest!, but his musical influence is best heard in the songs he inspired.
Can you be married in one country but not another? Only if you're part of a gay couple. One of the first famous singers to come out as a lesbian, Janis wrote a song about it.
Smith breaks down some of his worship tracks as well as his mainstream hits, including "I Will Be Here For You" and "A Place In This World."
One of the first successful female singer-songwriters, Janis had her first hit in 1967 at age 15.
The Jayhawks' song "Big Star" has special meaning to Gary, who explains how longevity and inspiration have trumped adulation.
