Gus Kahn and Walter Donaldson wrote this in 1925 - The Charleston era. The song was inspired by a pig, but not a real one. The composers were visiting Eddie Cantor one afternoon when Cantor's daughter Marjorie brought out one of her favorite toys, a walking mechanical pig. She wound it up and it started walking in rhythm while two notes kept coming from the little creature. Kahn was inspired and started working lyrics to these notes in rhythm with the pig, coming up with the title and opening line of the chorus in short order. Cantor turned it into a hit. Years later, Kahn commented that his take from the song constituted the largest amount of money a Jewish man had ever made from a pig.
Terry - Willmar, MN