
Katy Perry's "Dark Horse" was co-written by Sarah Hudson, who was a member of the pop group Ultraviolet Sound. Though Sarah isn't related to Katy (whose real name is Katy Hudson), she is the first cousin of another famous person with the same name, the actress Kate Hudson.

2001 was when collaborations between rappers and singers became commonplace, leading to a new Grammy category: Best Rap/Sung Collaboration. The first winner was "Let Me Blow Ya Mind" by Eve and Gwen Stefani. This was before Stefani put out her first solo album.

"Mr. Roboto" by Styx was written by their keyboard player, Dennis DeYoung, who used Japanese words and imagery to create an allegory about censorship.

Bruce Springsteen wrote "Blinded By The Light," which was a #1 hit for Manfred Mann's Earth Band. The "Madman Drummers" line is a reference to Springsteen's first E-Street drummer, Vinnie "Mad dog" Lopez.

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.

"The Candy Man" is the opening song in the 1971 movie Willie Wonka And The Chocolate Factory, but the version released as a single was by Rat Pack member Sammy Davis Jr. It was a #1 hit and became his signature song even though his audience was very adult.
One of the most successful songwriters in the business, Desmond co-wrote "Livin' La Vida Loca," "Dude (Looks Like A Lady)" and "Livin' On A Prayer."
With Bernie Taupin, Martin co-wrote the #1 hits "We Built This City" and "These Dreams." After writing the Pretty Woman song for Go West, he had his own hit with "In the House of Stone and Light."
Billie Jean, Delilah, Sara, Laura and Sharona - do you know who the girls in the songs really are?
Charlie discusses the songs that made him a Southern Rock icon, and settles the Devil vs. Johnny argument once and for all.
How a gym teacher, a janitor, and a junkie became part of some very famous band names.
Phil was a songwriter, producer and voice behind many Philadelphia soul classics. When disco hit, he got an interesting project: The Village People.