"Grenade" was a term used on the show Jersey Shore to mean an ugly girl. Bruno Mars says his hit song with that title was written before the show started.
The first Good Charlotte hit, "Lifestyles Of The Rich And Famous," is a send-up of celebrity culture, but the group's leaders, Joel and Benji Madden, both married celebrities: Nicole Richie and Cameron Diaz, respectively.
When Pearl Jam plays "Daughter" live, they usually extend the ending so Eddie Vedder can improvise, saying or singing whatever is on his mind.
"Here I Go Again" was a #1 hit for Whitesnake in 1987, but it was first released in 1982 with the lyric, "Like a hobo I was born to walk alone."
Enrique Iglesias' single "Bailando" was the first Spanish-language song to reach one billion views on YouTube.
"Izzo (H.O.V.A.)" refers to "Hova," which is what Jay-Z calls his God Name. Jay-Hova, as in Jehovah.
Taylor talks about "The Machine" - the hits, the videos and Clive Davis.
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.
Did this Eagle come up with the term "Parrothead"? And what is it like playing "Hotel California" for the gazillionth time?
Untangling the events that led to the "Stairway To Heaven" lawsuit.
These overtly religious songs crossed over to the pop charts, despite resistance from fans, and in many cases, churches.
Did Al play on a Beach Boys record? Did he have beef with George Lucas and Coolio? See if you can spot weird but true stories.