Ellie Goulding's hit single "Burn" was originally demoed by Leona Lewis for her 2011 Glassheart album. She scrapped the tune when the project was retooled to include more ballads.
Radiohead's "Harry Patch (In Memory Of)" is about the last surviving World War I veteran to fight in the trenches.
"Torn" by Natalie Imbruglia was first recorded by the group Ednaswap in 1993. It was written by Ednaswap's Anne Previn and Scott Cutler, who went on to write some hits for Miley Cyrus.
The Spacehog song "In The Meantime" samples an obscure recording of telephone noise, which is used at the beginning of the song.
Paul McCartney wrote "Blackbird" in Scotland after reading about race riots in the U.S. when federal courts forced the racial desegregation of the Arkansas capital's school system.
Chris Stein of Blondie shares photos and stories from his book about the New York City punk scene.
The man who ran Nirvana's first label gets beyond the sensationalism (drugs, Courtney) to discuss their musical and cultural triumphs in the years before Nevermind.
A top country songwriter, Barry talks about writing hits for Little Big Town, Tim McGraw and Jason Aldean.
Bob was the bass player and lyricist for the first two Ozzy Osbourne albums. Here's how he wrote songs like "Crazy Train" and "Mr. Crowley" with Ozzy and Randy Rhoads.
Faith No More's bassist, Billy Gould, chats to us about his two new experimental projects, The Talking Book and House of Hayduk, and also shares some stories from the FNM days.