Icona Pop considers "I Love It" a kiss-off to their boyfriends: "we just wanted to get the song out and get the pigs to hear it," Jawo said.
"What's Up" by 4 Non Blondes has endured as one of the most popular songs of the '90s, but it wasn't a huge hit at the time and the band split after one album. Frontwoman Linda Perry went on to write hits for Pink and Christina Aguilera.
Bernie Taupin was 17 when he wrote the lyrics to Elton John's "Your Song." Looking back, he says it's "one of the most naïve and childish lyrics in the entire repertoire of music."
The first single to simultaneously top the UK and US charts was The Everly Brothers' "Cathy's Clown" in May 1960.
"November Rain" by Guns N' Roses has a literary influence: The lyric is based on a story called Without You by Del James.
Katy Perry says her 2008 song "Ur So Gay" is about "guys who wear the guyliner, steal your jeans, and that whole almost hipster emo scene."
Meshell Ndegeocello talks about recording "Wild Night" with John Mellencamp, and explains why she shied away from the spotlight.
Some songs get a second life when they find a new audience through a movie, commercial, TV show, or even the Internet.
Joe talks about the challenges of of making a Duke Ellington tribute album, and tells the stories behind some of his hits.
Rob Thomas on his Social Distance Sessions, co-starring with a camel, and his friendship with Carlos Santana.
"Come On Eileen" was a colossal '80s hit, but the band - far more appreciated in their native UK than stateside - released just three albums before their split. Now, Dexys is back.
Andrew Farriss on writing with Michael Hutchence, the stories behind "Mystify" and other INXS hits, and his country-flavored debut solo album.