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

16-tear-old Lorde wrote the lyrics to "Royals" at home in just half an hour. She was inspired by the "ridiculous, unrelatable, unattainable opulence" that runs through such albums as Kanye West and Jay-Z's Watch the Throne and Lana Del Rey's Born To Die.

Graham Nash wrote the domestic tranquility classic "Our House" about the house he shared with Joni Mitchell. It was a very very very fine house.

"It Wasn't Me" by Shaggy was based on an Eddie Murphy comedy bit where he would deny everything no matter how badly he was caught.

Billy Idol got the title for "Rebel Yell" from a brand of whiskey he saw members of The Rolling Stones drinking.

David Bowie's "Heroes" is about his producer Tony Visconti and his girlfriend, but Bowie didn't admit this until the '00s, since Visconti was married at the time.
Martyn talks about producing Tina Turner, some Heaven 17 hits, and his work with the British Electric Foundation.
Did this Eagle come up with the term "Parrothead"? And what is it like playing "Hotel California" for the gazillionth time?
Medley looks back on "Unchained Melody" and "You've Lost That Lovin' Feelin'" - his huge hits from the '60s that were later revived in movies.
"How much does it cost? I'll buy it?" Another songwriter told Jonathan to change these lyrics. Good thing he ignored this advice.
"When seeds that you sow grow by the wicked moon/Be sure your sins will find you out/Your past will hunt you down and turn to tell on you."
The flautist frontman talks about touring with Led Zeppelin, his contribution to "Hotel California", and how he may have done the first MTV Unplugged.