
The Lady Gaga/Beyoncé collaboration "Telephone" isn't just about turning down an unwanted caller, it's an analog for how Gaga was feeling overwhelmed, like a phone was always ringing in her head.

Will.I.am, literally dreamt up "I Gotta Feelin'." Said the Black Eyed Pea: "Have you ever had a dream where there's a melody in your dream? I'll wake up out of my sleep and record that! 'I Gotta Feelin' was one of those songs."

"Big Love" is a showcase song for Lindsey Buckingham and the first single from Fleetwood Mac's 1987 album Tango In The Night, but he left the group soon after the album was released and the band didn't perform it live until he returned 10 years later.

45% of the royalties for "Somebody That I Used To Know" go to the estate of the Brazilian classical guitarist Luiz Bonfá, whose song "Seville" Gotye sampled.

Creedence Clearwater Revival's first single was a cover of a rockabilly song called "Susie Q." When it became a hit, group leader John Fogerty went into a songwriting frenzy so they wouldn't be one-hit wonders, resulting in hits like "Proud Mary" and "Lodi."

Neither Peter Frampton nor Lynyrd Skynyrd ever had a #1 hit, but when Will To Power mashed up their songs "Baby, I Love Your Way" and "Free Bird" into a lite-rock medley in 1988, it hit the top spot.
Many unusual folks appear in Grateful Dead songs. Can you identify them?
Here's what happens when an opening act is really out of place with the headliner, like when Beastie Boys opened for Madonna.
"Missing You" was a spontaneous outpouring of emotion triggered by a phone call. John tells that story and explains what MTV meant to his career.
One of the most dynamic bass player/songwriters of his time, Chris is the only member of Yes who has been with the band since they formed in 1968.
When Dave recorded the first version of the song with his group the Blasters, producer Nick Lowe gave him some life-changing advice.
Just how much did these monsters of rock dabble in the occult?