The scantily clad benefit event will take place at BPM Nightclub.
St. Louis will take over the role of Sherrie from Kate Rockwell on April 21.
David Esbjornson will direct a fresh interpretation of the classic film.
The new film will be created by Oprah Winfrey's OWN.
The production also features Patrick Wilson and Sierra Boggess.
The Pulitzer Cabaret will feature songs from Next to Normal, Rent, Sunday in the Park With George, and more.
Josh Iacovelli directs the new drama off-Broadway.
Tony nominee Jessie Mueller leads the cast with Jake Epstein, Anika Larsen, and Jarrod Spector.
The company's semiannual Playmaking series will culminate with Out on a Limb: Plays That Branch Out.