Groucho Marx undistinguished vaudeville singing group billed as "The Four Nightingales". The brothers Julius, Milton (Gummo Marx) and Arthur (originally Adolph, but Harpo Mark from 1911) and another boy singer, Lou Levy, traveled the U.S. vaudeville circuits to little fanfare. After exhausting their prospects in the East, the family moved to La Grange, Illinois, to play the Midwest. After a particularly dispiriting performance in Nacogdoches, Texas, Julius, Milton, and Arthur began cracking jokes onstage for their own amusement. Much to their surprise, the audience liked them better as comedians than as singers. They modified the then-popular Gus Edwards comedy skit "School Days"
A Night at the Opera (film) Night at the Opera" but "A Day at the Races". Another idea of Thalberg's was that before filming would commence on an upcoming picture, the Marx Brothers would try out its material on the vaudeville stage, working on comic timing and learning what earned a laugh and what did not. He was keen to plant gags accordingly so the laughs could be timed correctly. The famous "stateroom" scene was nearly eliminated because it was not getting any laughs. One evening the Marx Brothers threw away the script and ad-libbed the whole thing. As a result, a weak scene was transformed