Warren Zevon’s “Werewolves of London” started out as a homework assignment from Phil Everly of the Everly brothers.  Warren Zevon and his good friend, Robert “Waddy” Wachtel were working together as part of the backing band for The Everly Brothers at the time.  Warren tells of the song’s origins on WarrenZevon.com:

“Phil Everly said, ‘I’m making another solo album. Why don’t you guys write a song for me – a dance song. Call it, ‘Werewolves Of London.”