"Girl Crush" by Little Big Town came from the hashtag #girlcrush, which its co-writer, Lori McKenna, spotted on Instagram.
"The Battle of Evermore" is the only song Zeppelin ever recorded with a guest vocalist. It features Sandy Denny from Fairport Convention duetting with Robert Plant.
"Brad Paisley's "River Bank" was inspired by his childhood growing up 500 yards from the Ohio River.
The bedrock of David Guetta's Nicki Minaj-featuring single "Hey Mama" is a sample of "Rosie," a 1940s prison recording from folk archivist Alan Lomax that songwriter Esther Dean first showed the French DJ on YouTube.
"Goodbye Yellow Brick Road" is one of the few Bernie Taupin lyrics that is more about him than Elton John. The song is about giving up glitz for the simple life - not exactly Elton's M.O.
Hoyt Axton wrote the Three Dog Night hit "Joy To The World." He said the "Jeremiah was a bullfrog" line just came into his head after having a drink of wine.
Find out how God and glam metal go together from the Stryper frontman.
The guy who brought us "Stacy's Mom" also wrote the Jane Lynch Emmy song and Stephen Colbert's Christmas songs.
Ozzy biting a dove? Alice Cooper causing mayhem with a chicken? Creed so bad they were sued? See if you can spot the real concert mishaps.
Ozzy, Guns N' Roses, Judas Priest and even Michael Bolton show up in this Classic Metal quiz.
At 80 years old, Yoko has 10 #1 Dance hits. She discusses some of her songs and explains what inspired John Lennon's return to music in 1980.
A popular contemporary folk singer, Williams still remembers the sticky note that changed her life in college.