Feist's "1234" is "about lost love, and the hope to recapture what you once had," but it's best known for the Sesame Street version about counting to four.
Billie Eilish set the rumors about her sexuality to rest with "Lunch," an anthem about wanting to devour a girl like a mid-day feast. The singer, who's attracted to both men and women, had her first romantic experience with a girl while she was writing the song.
Before she was famous, Lady Gaga was a staff songwriter, and wrote the song "Quicksand," which Britney Spears recorded in 2008.
"Panama" by Van Halen is not about the country or the canal, but about a stripper David Lee Roth met in Arizona.
The voice is that says "here we go" in the AJR song "Bang!" belongs to Charlie Pellett, the announcer on the New York City subway ("stand clear of the closing doors, please").
Adele isn't a ghost when she sings, "Hello from the other side" - it means the "other side of becoming an adult."
Was Janet secretly married at 18? Did she gain 60 pounds for a movie role that went to Mariah Carey? See what you know about Ms. Jackson.
Deep Purple's guitarist since 1994, Steve talks about writing songs with the band and how he puts his own spin on "Smoke On The Water."
Call us crazy, but we like it when an artist comes around who doesn't mesh with the status quo.
David Gray explains the significance of the word "Babylon," and talks about how songs are a form of active imagination, with lyrics that reveal what's inside us.
The Evanescence frontwoman on the songs that have shifted meaning and her foray into kids' music.
A selection of songs made to be terrible - some clearly achieved that goal.