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 since he did not join the act until Gummo had departed. As with Groucho, three explanations exist for Herbert's name "Zeppo": Maxine Marx reported in "The Unknown Marx Brothers" that the brothers listed their "real" names (Julius, Leonard, Adolph, Milton, and Herbert) on playbills and in programs, and only used the nicknames behind the scenes, until Alexander Woollcott overheard them calling one another by the nicknames. He asked them why they used their real names publicly when they had such wonderful nicknames, and they replied, "That wouldn't be dignified." Woollcott answered with a belly laugh. Woollcott did not meet the