"I Guess That's Why They Call It The Blues" by Elton John was written for the sister of actress Rene Russo. Bernie Taupin, who wrote the lyrics, was married to Rene's sister, Toni.
Village People lead singer Victor Willis, who co-wrote "Y.M.C.A.," insisted it isn't a gay song - it's about hanging out with your buddies.
"Magic" was the first word to serve as both the title of a #1 hit (Olivia Newton-John's 1980 tune "Magic") and the name of an artist behind a chart-topping song (Magic!'s 2014 hit "Rude").
"Do They Know It's Christmas?" by Band-Aid was the first big group charity single. It was organized by Bob Geldof, who a year later put together "We Are The World" and Live Aid.
MTV wanted Weezer to record a version of their song "Hash Pipe" as "Half Pipe" to appeal to the skateboarding crowd. The band refused, and MTV listed the song as "H*** Pipe."
Bob Seger's song "Beautiful Loser" was inspired by a book Leonard Cohen published in 1966 called Beautiful Losers.
The country hitmaker talks about his debut album, A Rock, and how a nursery rhyme inspired his hit single "One Beer."
Just like Darrin was replaced on Bewitched, groups have swapped out original members, hoping we wouldn't notice.
How well do you know your David Bowie lyrics? Take this quiz to find out.
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.
With the rise of Kindie rock, more musicians are embracing their inner child with tunes for tots - here, we look at pop stars who recorded kids' albums.
Joe talks about the challenges of of making a Duke Ellington tribute album, and tells the stories behind some of his hits.