Homer's Barbershop Quartet praised the "four-part harmony of hilarity [that] gets a flawless mop top modeling", complimenting the references to pop culture icons as being "right on the money". TV DVD Reviews commented on how the episode "hit all the right notes", and was pleased with Harrison's cameo. Despite the episode being a "leftover from last season", "The Washington Post" still applauded the episode's humor, saying, "Who cares? It's funny." "The Courier-Mail" found "Homer's Barbershop Quartet" an entertaining episode. Asserting that the series hit its peak with season five episodes such as "Homer's Barbershop Quartet", the "Sunday Tasmanian" called the episode a "first-class
Barbershop music recording industry their performances were recorded and sold. Early standards included songs such as "Shine On, Harvest Moon", "Hello, Ma Baby", and "Sweet Adeline". Johnson noted in the 1920s how the genre had already crossed racial barriers. Barbershop music was very popular between 1900 and 1919, and some of the most popular quartets were the Haydn Quartet, the American Quartet, and the Peerless Quartet. Modern barbershop quartets often costume themselves in gaudy versions of the vaudeville dress of this time, with boaters and vertically striped vests. Composer and pianist Scott Joplin incorporated a barbershop quartet into his 1911 opera "Treemonisha".