In 1939, a polka craze swept America thanks to "Beer Barrel Polka (Roll Out The Barrel)."

The song "Knock On Wood" was confusing to UK listeners because the saying there is "Touch Wood."

When the Velvet Underground song "Heroin" got screechy, Maureen Tucker stopped drumming, figuring it would bust the take, but her bandmates kept going. You can hear it at the 5:20 mark.

Paul McCartney's favorite song that he wrote for someone else is Cilla Black's 1968 UK Top 10 hit "Step Inside Love."

"The Cave" by Mumford & Sons is based on the philosophy of Plato and his work called "Allegory of the Cave."

Featured in the 1978 musical Evita, "Don't Cry For Me Argentina" became the biggest selling UK hit by a female vocalist (Julie Covington).
Into the vaults for this talk with Bolton from the '80s when he was a focused on writing songs for other artists.
Rise Against frontman Tim McIlrath explains the meanings behind some of their biggest songs and names the sci-fi books that have influenced him.
Was "Pearl" Eddie Vedder's grandmother, and did she really make a hallucinogenic jam? Did Journey have a contest to name the group? And what does KISS stand for anyway?
Ron Nevison explains in very clear terms the Quadrophenia concept and how Heart staged their resurgence after being dropped by their record company.
A selection of songs made to be terrible - some clearly achieved that goal.
Whether he's splitting ears or burning Nazis, Quentin Tarantino uses memorable music in his films. See if you can match the song to the scene.