
Kacey Musgraves offered "Follow Your Arrow" to her friend Katy Perry, but Perry thought Musgraves should record the song herself, telling Kacey it seemed "like something that you would totally say."

The horn flourish at the beginning of "Jump Around" comes from Bob and Earl's "Harlem Shuffle"; the squeal throughout the song might be a Prince sample.

Katherine Heigl played Josh Kelley's love interest in the video for his 2005 song "Only You." They met on the shoot, became a real-life couple, and got married two years later. That's good casting!

Bob Seger's song "Beautiful Loser" was inspired by book Leonard Cohen published in 1966 called Beautiful Losers.

"Crank That (Soulja Boy)" was the most successful digital track of 2007 in the US with 2,909,000 downloads. On January 6, 2008 it became the first song ever to sell 3 million digital copies in the States.

Ronnie Spector nailed the vocal for The Ronettes song "(Walking) In the Rain" on the first take -- unheard of in the perfectionist producer Phil Spector's world.
The Bush frontman on where he finds inspiration for lyrics, if his "machine head" is a guitar tuner, and the stories behind songs from the album The Kingdom.
A top session musician, Carol played on hundreds of hits by The Beach Boys, The Monkees, Frank Sinatra and many others.
One of the most successful songwriters in the business, Desmond co-wrote "Livin' La Vida Loca," "Dude (Looks Like A Lady)" and "Livin' On A Prayer."
John tells the "St. Elmo's Fire (Man In Motion)" story and explains why he disappeared for so long.
In her days with The Runaways, Joan Jett saw The Arrows perform "I Love Rock And Roll," which Alan Merrill co-wrote - that story and much more from this glam rock pioneer.