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Four Bettys is the barbershop quartet that won the Sweet Adelines International Quartet Championship for 2008 in October 2007, in Calgary, Alberta, Canada.
As was Mr. Wilson's original rendition Coney Island Baby was often included in the repertoire of a barbershop quartet.
Hogthrob appears in several scenes in the background and gets a moment in the spotlight as part of a barbershop quartet, singing "Smells Like Teen Spirit".
7-Ball, the United States Army 101st Airborne Division Band Barbershop Quartet, whose logo features a pool 7-ball (see above)
Flat Foot Four, a Barbershop quartet that won the 1940 SPEBSQSA international competition
The quartet received first place gold medals at the Nordic Barbershop Quartet Contest in Stockholm (April 2008), and won the Barbershop Harmony Society International Collegiate Championship in July 2008 in Nashville, Tennessee.
Once again in the spotlight, Tony recounts to the audience how the Conservative opposition was no competition, before a barbershop quartet of former Tory leaders - John Major, William Hague, Iain Duncan Smith and Michael Howard - shuffle on stage in boaters to sing their comic song in which they lament how they all fell foul of Mr. Blair.