The song "Michigan Rag" was invented solely for this short.
Due to the cartoon, "Dancing Frog" is now computer terminology for a computer problem that will not appear when anyone else is watching.
Steven Spielberg once described this as "the most perfect cartoon ever made," as well as "the Citizen Kane (1941) of the animated short."
The retrospectively-given name of Michigan J. Frog is derived from the one song he sings in this cartoon that Chuck Jones and Michael Maltese wrote especially for him, "The Michigan Rag". Jones came up with the middle initial after being interviewed by a writer named Jay Cocks.
First (and, as far as many people are concerned, only) appearance of Michigan J. Frog.