The Ricky Martin song "She Bangs" found new life when William Hung performed it so horribly on a 2004 episode of American Idol that it went viral.
Johnny Cash promised to stay true to his first wife in "I Walk The Line," but when the song became a hit he found himself on the road, having an affair with June Carter, who became his second wife.
Sia Furler originally sent "Pretty Hurts" to Katy Perry, but she didn't see the email, so Beyonce ended up recording it instead.
"True" by Spandau Ballet is about chief songwriter Gary Kemp's unrequited love for Altered Images singer and Gregory's Girl star Clare Grogan.
Lily Allen wrote "Something's Not Right" for the soundtrack of the Peter Pan prequel, Pan. The song was inspired by the heartache that Allen experienced after suffering a miscarriage when she was six months pregnant with her first child by husband Sam Cooper in 2010.
"Oh Happy Day" was recorded in a church and sold to raise money for the choir. It's the only genuine gospel song to become a pop hit.
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.
Not everyone can be a superhero, but that hasn't stopped generations of musicians from trying to be Superman.
The lead singer and pianist for Procol Harum, Gary talks about finding the musical ideas to match the words.
Did they really trade their guitarist to The Doobie Brothers? Are they named after something naughty? And what's up with the band name?
Can you name Def Leppard's only #1 hit in America? Get rocked with this adrenalized quiz.
Michael tells the story of "Send Me On My Way," and explains why some of the words in the song don't have a literal meaning.
