Katy Perry's song "E.T." came from a beat originally intended for the rap group Three Six Mafia. When her producer accidentally pulled up the beat, Perry asked to use it.
In the UK, the first #1 hit with a rap was "Candy Girl" by the American boy band New Edition in 1983.
"Today" by Smashing Pumpkins is sarcastic in the line "today is the greatest day." Lead singer Billy Corgan wrote it about the crippling depression he was battling following the band's first big tour.
"Anaconda" was originally recorded by Missy Elliott in 2012, but she decided to shelf the track so it went to Nicki Minaj, who released it two years later.
Foreigner got the title for "Double Vision" after watching a hockey game where goalie John Davidson got a concussion. It was announced over the PA system that he was suffering from "Double Vision."
UB40's cover of Neil Diamond's "Red Red Wine" was a minor hit when first released in 1983, but it went to #1 five years later when radio stations in Phoenix started playing it.
A top session musician, Carol played on hundreds of hits by The Beach Boys, The Monkees, Frank Sinatra and many others.
Charlie discusses the songs that made him a Southern Rock icon, and settles the Devil vs. Johnny argument once and for all.
A song he wrote and recorded from "sheer spiritual inspiration," Allen's didn't think "Southern Nights" had hit potential until Glen Campbell took it to #1 two years later.
Director Mark Pellington on Pearl Jam's "Jeremy," and music videos he made for U2, Jon Bon Jovi and Imagine Dragons.
From "Some Day My Prince Will Come" to "Let It Go" - how Disney princess songs (and the women who sing them) have evolved.
The Canadian superstar talks about his sudden rise to fame, and tells the stories behind his hits "Sunglasses At Night," "Boy In The Box" and "Never Surrender."