The "Mum-mum-mum-ma" hook on lady Gaga's "Poker Face" was sampled from Boney M's 1977 hit "Ma Baker."
Rapper Memphis Bleek's 2005 album track "The One" is notable for featuring a then-unknown Rihanna on the hook. It was the Barbadian singer's first-ever major-label appearance.
The Bangles song "Eternal Flame" was inspired by a display at Graceland that honored Elvis Presley.
The melody to "Yesterday" came to Paul McCartney in a dream, but the lyrics he had to write consciously. His first attempt at the title was "Scrabble Eggs."
"Sister Christian" was written by Night Ranger drummer Kelly Keagy, who was imploring his younger sister to be careful in her reckless youth, especially when "motoring" (driving around) with friends.
Recording "Don't Let The Sun Go Down On Me," Elton John was frustrated and sang the line "don't discard me" with an exaggerated American accent, which is why is sounds strange.
"Mr. Jones" took on new meaning when the song about a misguided view of fame made Adam famous.
Rob Halford, Richie Faulkner and Glenn Tipton talk twin guitar harmonies and explain how they create songs in Judas Priest.
An interview with Frankie Valli, who talks about why his songs - both solo and with The Four Seasons - have endured, and reflects on his time as Rusty Millio on The Sopranos.
In the name of song explanation, Al talks about scoring heroin for William Burroughs, and that's not even the most shocking story in this one.
Since his debut single "I'm On Fire" in 1975, Dwight has been providing Spinal-Tap moments and misadventure.
Did Al play on a Beach Boys record? Did he have beef with George Lucas and Coolio? See if you can spot weird but true stories.