Abbott and Costello were an American comedy duo composed of comedians Bud Abbott and Lou Costello, whose work in radio, film, and television made them the most popular comedy team of the 1940s and 1950s, and the highest-paid entertainers in the world during the Second World War. Their patter routine "Who's on First?" is considered one of the greatest comedy routines of all time, a version of which appears in their 1945 film The Naughty Nineties.
Abbott (left) and Costello (right) circa 1940s
With Carmen Miranda, The Streets of Paris, in 1939.
Abbott and Costello on radio (note Abbott without toupee normally worn in films)
Abbott and Costello on NBC's This Is Your Life November 21, 1956
A double act is a form of comedy originating in the British music hall tradition, and American vaudeville, in which two comedians perform together as a single act, often highlighting differences in their characters' personalities. Pairings are typically long-term, in some cases for the artists' entire careers. Double acts perform on the stage, television and film.
Lyons and Yosco, vaudeville act and ragtime composers from the 1910s
Martin and Lewis
Franco and Ciccio
Mitchell and Webb