<Li>' That's a Lot of Bunk', a 1920s novelty song by Billy Jones and Ernest Hare, known as "The Happiness Boys," uses the riff at the end of the song . </Li> <Li> R&B singer and bandleader Dave Bartholomew used the phrase on two of his recordings: "Country Boy" (1950) at the very end, and the original version of "My Ding - A-Ling" (1952) as a figure introducing each verse . </Li> <Li> Les Paul and Mary Ford's Capitol recording of "Magic Melody" concluded with the phrase minus the last two notes ("two bits"). Responding to complaints from disc jockeys, Capitol in 1955 released "Magic Melody Part 2"--consisting solely of the missing notes--on a 45, said to be the shortest tune on record . </Li> <Li> P.D.Q. Bach ends his "Blaues Gras" ("bluegrass") aria with "Shave and a Haircut", sung in Denglisch (mangled German and English): "Rasieren und Haarschneiden, zwei bitte" ("Shave and haircut, two please", ungrammatical in either language). "Zwei bitte" is a Denglisch pun, sounding like "two bits" to a speaker of both languages . The melody is also used in The Short - Tempered Clavier . </Li>

Where did the shave and a haircut knock come from