Marx Brothers stage during the middle of a Groucho monologue to see if Groucho would be thrown off. However, to the audience's delight, Groucho merely reacted by commenting, "First time I ever saw a taxi hail a passenger". When Harpo chased the girl back in the other direction, Groucho calmly checked his watch and ad-libbed, "The 9:20's right on time. You can set your watch by the Lehigh Valley." The brothers' vaudeville act had made them stars on Broadway under Chico's management and with Groucho's creative direction—first with the musical revue "I'll Say She Is" (1924–1925) and then with two musical comedies:
Marx Brothers Marx Brothers until the premiere of "I'll Say She Is", which was their first Broadway show, so this would mean that they used their real names throughout their vaudeville days, and that the name "Gummo" never appeared in print during his time in the act. Other sources reported that the Marx Brothers went by their nicknames during their vaudeville era, but briefly listed themselves by their given names when "I'll Say She Is" opened because they were worried that a Broadway audience would reject a vaudeville act if they were perceived as low class. The Marx Brothers' stage shows became