Freddie Mercury once cancelled a duet recording with Michael Jackson because Jackson insisted on bringing his llama Louie to the studio.

Elvis had a twin brother named Jesse Garon, who died at birth, which is why Elvis’ middle name was spelled Aron; in honor of his brother.

Paul McCartney, wrote “Hey Jude” as a comfort song for John Lennon’s son Julian while his parents were going through a divorce.

Justin Timberlake was the voice behind the McDonald’s phrase “I’m Lovin’ It” and he was paid $6 million for the song.

Mozart composed a song title “Leck mir den Arsch fein recht schon sauber”. English translation:”Lick my ass right well and clean”.

The lead singer of The Knack, famous for “My Sharona,” and Jack Kevorkian’s lead defense attorney are brothers, Doug and Jeffrey Feiger.

The 27 Club refers to popular musicians like Brian Jones, Jimi Hendrix, Janis Joplin, Jim Morrison, and Amy Winehouse, who have prematurely died at the age of 27.

The song “Wake Me Up When September Ends” was dedicated towards singer Billie Joe Armstrong’s father who died of cancer in September when Billie was a child.

When George Lucas was mixing the American Graffiti soundtrack, he numbered the reels of film starting with an R and numbered the dialog starting with a D. Sound designer Walter Murch asked George for Reel 2, Dialog 2 by saying “R2D2″. George liked the way that sounded so much he integrated that into another project he was working on.