What happens when Kurt Cobain, Iron Maiden and Johnny Lydon are told to lip-synch? Some hilarious "performances."
The drummer for Anthrax is also a key songwriter. He explains how the group puts their songs together and tells the stories behind some of their classics.
The Creed lead singer reveals the "ego and self-fulfillment" he now sees in one of the band's biggest hits.
Bob was the bass player and lyricist for the first two Ozzy Osbourne albums. Here's how he wrote songs like "Crazy Train" and "Mr. Crowley" with Ozzy and Randy Rhoads.
Bradley Cooper, Michael J. Fox, Rami Malek, Reese Witherspoon, Gwyneth Paltrow and George Clooney: Which actors really sang in their movies?
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.
"Izzo (H.O.V.A.)" refers to "Hova," which is what Jay-Z calls his God Name. Jay-Hova, as in Jehovah.
Katy Perry says her 2008 song "Ur So Gay" is about "guys who wear the guyliner, steal your jeans, and that whole almost hipster emo scene."
"Dirty Water" became a Boston sports anthem in the '00s, but it was written by a guy from California after almost getting mugged on a visit to the city.
An Allen Ginsberg line from his poem Howl inspired "Machinehead" by Bush: "Machine says I saw the best minds of my generation."
Ed Sheeran thought he wrote the x track "Photograph" on 6th Street in Denver, so he got a tattoo saying 6 ST. But when he returned it turned out the street was actually 6th Avenue.
Demi Lovato recorded a Spanish version of her song "Skyscraper," but she doesn't speak Spanish. She performed it on a Latin music awards show with help from a teleprompter.