The song "Grease," sung by Frankie Valli in the 1978 movie, was written by Barry Gibb of The Bee Gees.

Don't play "I Will Always Love You" at your wedding - Dolly Parton wrote it about leaving someone behind to strike out on her own.

Ronnie Dunn wrote "Boot Scootin' Boogie" before he teamed up with Kix Brooks to form Brooks & Dunn. It was originally recorded by the country group Asleep At The Wheel, but Brooks & Dunn did it themselves when it got its own line dance.

Damon Albarn found inspiration for Blur's Britpop classic "Girls & Boys" while on holiday in Majorca. He noted that in the club scene there was "no morality involved."

The Beastie Boys' "No Sleep Till Brooklyn" is a parody of heavy metal music. Kerry King of Slayer played guitar on the track - purposefully out of tune in parts.

Ricky Martin's "Livin' La Vida Loca" was the first #1 hit created entirely in Pro Tools.
The Evanescence frontwoman on the songs that have shifted meaning and her foray into kids' music.
Before "Rap" was a form of music, it was something guys did to pick up girls in nightclubs. Donnie talks about "The Rapper" and reveals the identity of Leah.
"Great songwriters don't necessarily have hit songs," says Chris. He's written a bunch, but his fans are more interested in the intricate jams.
How well do you know your protest songs (including the one that went to #1)?
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.
When a song describes a wedding, it's rarely something to celebrate - with one big exception.