"The Battle of Evermore" is the only song Zeppelin ever recorded with a guest vocalist. It features Sandy Denny from Fairport Convention duetting with Robert Plant.
"Hot n Cold" by Katy Perry is about a real guy - an ex who would seem really interested at times but would then just disappear.
We were all party rocking in 2011 with the global smash "Party Rock Anthem," but rap fans know the "Everyday I'm shufflin'" line is a take on "Everyday I'm hustlin'" from the 2006 Rick Ross track "Hustlin'."
"Take On Me" was just a minor hit in Norway until a new version was released with the iconic video, making it a global smash.
The Matchbox Twenty song "3 AM" is about the difficult times lead singer Rob Thomas spent caring for his mother, who had cancer.
When Pearl Jam plays "Daughter" live, they usually extend the ending so Eddie Vedder can improvise, saying or singing whatever is on his mind.
A history of songs dealing with transgender issues, featuring Pink Floyd, David Bowie, Morrissey and Green Day.
Rickie Lee Jones on songwriting, social media, and how she's handling Trump.
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?
Michael tells the story of "Send Me On My Way," and explains why some of the words in the song don't have a literal meaning.
Not everyone can be a superhero, but that hasn't stopped generations of musicians from trying to be Superman.
Into the vaults for this talk with Bolton from the '80s when he was a focused on writing songs for other artists.