Minnie Mouse has had an inconsistent list of nieces. In Europe and Brazil, most often a single niece is depicted, even consistently named Melody. She is a Disney Studio creation by Jim Fletcher in the mid-sixties whose primary "task" seems to be to drive Morty and Ferdie crazy. However, in at least one other Italian or Brazilian tale Minnie did have another niece named Zizi (whether this was the name of Melody's twin or just another name for Melody is unknown). However, in America, Minnie has had a couple sets of twin nieces as portrayed by Paul Murry, named both Melody & Millie and Pammy & Tammy (these could very easily be the same twins, but Paul Murry forgot he had already named them in a previous tale).