William "Bud" Abbott and Lou Costello were the two comedians
that were the inspiration for the names of the two hungry cats in
the short that marked Tweety Bird's initial appearance in 1942.
This debutÊofÊTweety was called "A Tale of Two Kitties," in which
his two feline foes were named "Babbit" and "Catstello" in the
short.ÊAbbott and Costello are best known for their baseball-themed
comedy routine titled "Who's On First?"