"Anaconda" was originally recorded by Missy Elliott in 2012, but the rapper decided to shelf the track so it was re-recorded by Minaj two years later.
Madonna wrote a song called "Love Won't Wait" that she didn't want, but became a UK #1 hit for Gary Barlow.
Jimi Hendrix wrote "The Wind Cries Mary" not about marijuana, but about his girlfriend at the time, Kathy Mary Etchingham.
"Louie Louie" was first recorded in 1955 by an R&B singer named Richard Berry, and his lyrics are easy to understand. When The Kingsmen recorded the hit version, their lyrics were indecipherable.
After 47 visits to the Hot 100, Justin Bieber topped the tally for the first time on September 17, 2015 with "What Do You Mean?"
The Split Enz song "Six Months In A Leaky Boat" is about the journey explorers made from Europe to colonize Australia and New Zealand, where the band is from.
Rickie Lee Jones on songwriting, social media, and how she's handling Trump.
How well do you know this shock-rock harbinger who's been publicly executed hundreds of times?
When Judd Apatow needed under-appreciated rockers for his Knocked Up sequel, he immediately thought of Parker, who just happened to be getting his band The Rumour back together.
The Jayhawks' song "Big Star" has special meaning to Gary, who explains how longevity and inspiration have trumped adulation.
As Procol Harum's lyricist, Keith wrote the words to "A Whiter Shade Of Pale." We delve into that song and find out how you can form a band when you don't sing or play an instrument.
A founding member of the band War, Harold gives a first-person account of one of the most important periods in music history.