"The Cave" by Mumford & Sons is based on the philosophy of Plato and his work called "Allegory of the Cave."
Ariana Grande's hit "Problem" started off as a track written by One Direction songwriter Savan Kotecha. He gave it the working title of "The Whisper Song," after a 2005 Ying Yang Twins hit.
At the end of AC/DC's "Night Prowler," you hear Bon Scott say, "Shazbot, Nanu Nunu." Those were Robin Williams' sayings on his TV show Mork & Mindy. Scott was a big fan.
The first single to simultaneously top the UK and US charts was The Everly Brothers' "Cathy's Clown" in May 1960.
The lyrics to "Heartbreak Hotel" were written by a steel guitar player who was once a dishwasher repairman. He was inspired by a newspaper story about a man who killed himself and left behind a note saying only, "I walk a lonely street."
"The Best" by Tina Turner was originally recorded by Bonnie Tyler; Turner's hit version added a bridge and a saxophone solo by Edgar Winter.
Prince is shrouded in mystery, making him an excellent candidate for Fact or Fiction. Is he really a Scientologist? Does he own an exotic animal?
If you can recall the days when MTV played videos, you know that there are lots of stories to tell. See if you can spot the real ones.
David Gray explains the significance of the word "Babylon," and talks about how songs are a form of active imagination, with lyrics that reveal what's inside us.
Deep Purple's guitarist since 1994, Steve talks about writing songs with the band and how he puts his own spin on "Smoke On The Water."
Rise Against frontman Tim McIlrath explains the meanings behind some of their biggest songs and names the sci-fi books that have influenced him.
The trail runs from flying saucer songs in the '50s, through Bowie, blink-182 and Katy Perry.