"Harrigan" is a song written by George M. Cohan for the short-lived 1908 Broadway musical Fifty Miles from Boston when it was introduced by James C.
The song was performed by James Cagney and Joan Leslie in the 1942 film Yankee Doodle Dandy, a biopic of Cohan's life.
It was also featured several times in the 1938 film "Hold That Co-ed" as a campaign theme song for John Barrymore's character "Governor Gabby Harrigan".
Examples can be found in "The Whim-Wham Book" by Duncan Emrich and in "Greasy Grimy Gopher Guts: The Subversive Folklore of Childhood" by Josepha Sherman and T. K. F. Weisskopf.
Allan Sherman's short medley of Cohan song parodies included this tune, reworked to sing about pianist Vladimir Horowitz.