"Teardrop" by Massive Attack has vocals by Elizabeth Fraser of The Cocteau Twins, who wrote the lyric after learning that Jeff Buckley had died.
In "I Walk The Line," Johnny Cash hums before each verse. He did this to get his pitch, as the song changes key several times.
The Information Society hit "What's On Your Mind (Pure Energy)" samples the voice of Leonard Nimoy (Spock) from an episode of Star Trek.
The disco song "Good Tmes" by Chic was a huge influence on early rap, providing the bassline for "Rapper's Delight."
Alicia Keys wrote "If I Ain't Got You" just after she'd heard the news that Aaliyah had passed away. in a plane crash.
When Metallica performed in China in 2013, they were not allowed to play "Master of Puppets."
Deep Purple's guitarist since 1994, Steve talks about writing songs with the band and how he puts his own spin on "Smoke On The Water."
Shaun breaks down the Seether songs, including the one about his brother, the one about Ozzy, and the one that may or may not be about his ex-girlfriend Amy Lee.
The Creed lead singer reveals the "ego and self-fulfillment" he now sees in one of the band's biggest hits.
Elvis, Little Richard and Cheryl Cole have all sung about Teddy Bears, but there is also a terrifying Teddy song from 1932 and a touching trucker Teddy tune from 1976.
What's the deal with "Summer of '69"? Bryan explains what the song is really about, and shares more of his songwriting insights.
The good doctor shares some candid insights on recording with Phil Spector and The Black Keys.