Who’s on First? Abbott and Costello script
Who’s on First? Abbott and Costello’s signature routine
The most famous of all of Abbott and Costello’s routines, Who’s on First? had been performed countless times in vaudeville and on radio, as well as a shortened version of it in their first movie, One Night in the Tropics (1940), with the longer, definitive version (shown here) filmed in The Naughty Nineties (1945). It even has a dedicated exhibit/plaque and is regularly showcased at the National Baseball Hall of Fame in Cooperstown, New York




, March 31, 1948 on ABC](https://i0.wp.com/abbott-and-costello-whos-on-first.info/wp-content/uploads/2026/10/Vintage-Abbott-and-Costello-T-Man-Radio-Show.png?resize=930%2C620&ssl=1)






