From Wikipedia: Keep Off the Grass is a musical revue with sketches by Mort Lewis, Parke Levy, Alan Lipscott, S. Jay Kaufman, and Panama & Frank, lyrics by Al Dubin and Howard Dietz, and music by Jimmy McHugh. The choreography was by George Balanchine.
Produced by Lee Shubert and J. J. Shubert, the Broadway production, opened on May 23, 1940 at the Broadhurst Theatre and ran for a total of 44 performances. The cast included Jimmy Durante, Ray Bolger, Jane Froman, Virginia O'Brien, Emmett Kelly and Ilka Chase. O'Brien recorded four of the songs for Columbia Records in 1940 and they are included as bonus tracks on her CD "Virginia O'Brien Salutes the Great MGM Musicals".
Man, oh man would I love to hear more about this show!