The Music Box Review 1921-1922 Brox Sisters performer Theatrical Performance 1921-09-22 Music Box Theater The two revues in the series were the creations of Irving Berlin (working with George M. Cohan's old partner, Sam Harris). The Brox Sisters' clarion call of "Everybody Step" summoned the entire chorus to a floor shaking stomp. Performing Arts Encyclopedia http://www.loc.gov/performingarts Bordman, Gerald: American Musical Theatre: A Chronicle. New York: Oxford University Press (1992). Tap Dance America http://lcweb2.loc.gov/diglib/ihas/html/tda/tda-home.html tda IHAS 151216 loc.music.tda.377