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.
Katy Perry's song "E.T." came from a beat originally intended for the rap group Three Six Mafia. When her producer accidentally pulled up the beat, Perry asked to use it.
"Kickstart My Heart" is about all the ways Motley Crue gets their blood flowing without drugs. It was inspired by their bass player Nikki Sixx, who claimed he had to be revived with a shot of adrenaline to the heart after an overdose.
In the late '70s, John Lennon slowed his roll, becoming a househusband who baked bread and took care of his young son Sean. This inspired his song "Watching The Wheels," where he discovers the benefits of taking it easy.
In the song "God," Tori Amos makes the point that if there's God, there must also be a Goddess because there are no male-only species.
Jonah Hill directed the video for Sara Bareilles' song "Gonna Get Over You." It's a mash-up of Grease and West Side Story.
His song "Into The Night" is one of the most-played of all time. For Benny, it took him to hell and back.
Our chat with Barney Hoskyns, who covers the wild years of Woodstock - the town, not the festival - in his book Small Town Talk.
With Bernie Taupin, Martin co-wrote the #1 hits "We Built This City" and "These Dreams." After writing the Pretty Woman song for Go West, he had his own hit with "In the House of Stone and Light."
Don breaks down "Hotel California" and other songs he wrote as a member of the Eagles. Now we know where the "warm smell of colitas" came from.
Rickie Lee Jones on songwriting, social media, and how she's handling Trump.
They sang about pink torpedoes and rocking you tonight tonight, but some real lyrics are just as ridiculous. See if you can tell which lyrics are real and which are Spinal Tap in this lyrics quiz.