"Leader of the Pack" is a song written by George "Shadow" Morton, Jeff Barry, and Ellie Greenwich. It was a number one pop hit in 1964 for the American girl group the Shangri-Las. The single is one of the group's best known songs as well as a popular cultural example of a "teenage tragedy song". The song was covered in 1985 by the heavy metal band Twisted Sister, who had a more modest hit with their version.

Eleanor Louise Greenwich was an American pop music singer, songwriter, and record producer. She wrote or co-wrote "Da Doo Ron Ron", "Be My Baby", "Maybe I Know", "Then He Kissed Me", "Do Wah Diddy Diddy", "Christmas ", "Hanky Panky", "Chapel of Love", "Leader of the Pack", and "River Deep – Mountain High", among others.