Icona Pop consider "I Love It" a kiss-off to their boyfriends. "We just wanted to get the song out and get the pigs to hear it," group member Jawo said.
Before it was part of a Pink Floyd album title, James Taylor put the line "still I'm on the dark side of the moon" in his 1968 song "Carolina In My Mind." He was living in London and missing his home in North Carolina.
The songwriting team Leiber and Stoller wrote "Hound Dog" for a blues singer named Big Mama Thronton, who first recorded the song in 1953. Elvis covered it in 1956, and it became his biggest hit.
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.
A 2011 Gold's Gym poll found "Stronger" by Kanye West the best song to work out to. Second place was the Rocky theme.
Eric Clapton wrote "Layla" about his love for Pattie Harrison, who was married to George Harrison at the time. He eventually married Pattie, and managed to stay friends with George.
"25 or 6 to 4" to "Semi-Charmed Life" - see if you can spot the songs that are really about drugs.
Did Marvin try out with the Detroit Lions? Did he fake crazy to get out of military service? And what about the cross-dressing?
Keyboard great David Sancious talks about his work with Sting, Seal, Springsteen, Clapton and Aretha, and explains what quantum physics has to do with making music.
The man who created Yacht Rock with "Sailing" wrote one of his biggest hits while on acid.
It took him seven years to recover from his American hit "Fool (If You Think It's Over)," but Chris Rea became one of the top singer-songwriters in his native UK.
The top Contemporary Christian artist of all time on song inspirations and what she learned from Johnny Carson.