Anna, a concert pianist who had studied ballet but never made it as a ballerina pushed her daughter to train as a dancer.
[1] She made her Broadway debut in the original cast of Agnes de Mille's Oklahoma!
She quickly became one of de Mille's regular assistant choreographers, working on Allegro (1947), Gentlemen Prefer Blondes (1949), Out of This World (1950), and The Girl in Pink Tights (1954).
[2] Before switching to choreography full-time, Krupska also appeared on Broadway in The King and I and the original Can-Can (1953).
Krupska's best-known work as a choreographer is The Most Happy Fella (1956), for which she received her first Tony nomination.