
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.

Phil Collins' "I Missed Again" was originally "I Miss You, Babe," and was a very somber song about his recent divorce. Collins decided to lighten it up and inject some humor into the song.

"Summertime" by DJ Jazzy Jeff & the Fresh Prince is built on a sample of a Kool & The Gang instrumental from 1974 called "Summer Madness," which gets a shout in the line, "This is the Fresh Prince's new definition of summer madness."

The Red Hot Chili Peppers' biggest hit is "Under The Bridge," a ballad not typical of their sound. Frontman Anthony Kiedis wrote the lyric after an acute bout of loneliness.

Elvis Costello says "Everyday I Write The Book" is a knockoff of Nick Lowe's "When I Write the Book."

Wang Chung's '80s classic "Dance Hall Days" is about how things can start simple but end up complex. First you "take your baby by the hand," but by the end she has an amethyst in her mouth.
The Garbage drummer/songwriter produced the Nirvana album Nevermind, and Smashing Pumpkins' Gish and Siamese Dream.
Vince Gill, Emmylou Harris and Lyle Lovett are just a few of the artists who have looked to Clark for insightful, intelligent songs.
Gramm co-wrote this gorgeous ballad and delivered an inspired vocal, but the song was the beginning of the end of his time with Foreigner.
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."
Joe talks about the challenges of of making a Duke Ellington tribute album, and tells the stories behind some of his hits.
The Prince-penned "Manic Monday" was the first song The Bangles heard coming from a car radio, but "Eternal Flame" is closest to Susanna's heart, perhaps because she sang it in "various states of undress."