The comedy duo Abbott and Costello, comprised of Bud Abbott and Lou Costello, were the highest-paid entertainers during WWII. They made a significant impact in radio, film, and television, becoming household names through their unique comedic style.
One of their most iconic performances is the “Who’s on First” sketch, widely considered the most famous comedy routine ever. Time magazine named it the best comedy routine of the twentieth century. The brilliance of this sketch lies in its clever wordplay and timing.

The sketch debuted in their 1945 film “The Naughty Nineties.” The premise of “Who’s on First” revolves around a baseball team with players who have peculiar names. Abbott attempts to explain these names to Costello, but the confusion arises from the names themselves: Who is the first baseman, What is the second baseman, and I Don’t Know is the third baseman. As Abbott lists these names, Costello’s frustration and confusion grow hilariously.
Costello initially believes that Abbott is confused, leading to a playful exchange where he swings a baseball bat and tries to clarify what seems like nonsense to him. However, Abbott’s consistent and straight-faced delivery only fuels the comedic chaos. The sketch is a masterclass in timing and delivery, with neither Abbott nor Costello missing a beat despite the complexity of the routine.
“Who’s on First” remains a timeless piece of comedy, showcasing the genius of Abbott and Costello. Their ability to maintain the intricate wordplay without faltering is a testament to their talent and chemistry. Even decades after its creation, the sketch continues to evoke laughter and admiration, proving the enduring appeal of their humor. Universal Pictures lists this version as “The Naughty Nineties | Who’s on First? — Abbott and Costello,” highlighting its historical significance and ongoing popularity.
