
When "Last Friday Night (T.G.I.F.)" climbed to #1 on the Hot 100, Katy Perry became the first woman to send five songs from one album to the top of the charts. The four previous chart-toppers from her Teenage Dream set were "California Gurls," "Teenage Dream," "Firework" and "E.T."

The phrase "Hasta la vista, baby" was popularized in the 1987 Jody Watley song "Looking For A New Love," four years before Arnold Schwarzenegger said it in the movie Terminator 2: Judgment Day.

The Doobie Brothers' swampy #1 hit "Black Water" is about the Mississippi River, evoking the rafting adventures Mark Twain and Huckleberry Finn.

Sia Furler originally sent "Pretty Hurts" to Katy Perry, but she didn't see the email, so Beyonce ended up recording it instead.

Mike Campbell from Tom Petty & the Heartbreakers played the slide guitar on "Sixth Avenue Heartache." There is a connection here - Wallflowers lead singer Jakob's dad, Bob Dylan, played with Tom Petty in The Traveling Wilburys.
"I'll Be" was what Edwin called his "Hail Mary" song. He says it proves "intention of the songwriter is 180 degrees from potential interpretation by an audience."
Richie talks about producing the first two Kiss albums, recording "Brother Louie," and the newfound appreciation of his rock band, Dust.
Doubt led to drive for Francis, who still isn't sure why one of Status Quo's biggest hits is so beloved.
Michelle Branch talks about "Everywhere," "The Game Of Love," and her run-in with a Christian broadcasting network.
Dwarfs on stage with an oversize Stonehenge set? Dabbling in Satanism? Find out which Spinal Tap-moments were true for Black Sabbath.