Roundabout Theatre Company's revival of Sophie Treadwell's 1928 drama is directed by Lyndsey Turner.
Joshua Johnston, LuPone's son, is now a second-generation member of the legendary troupe.
Catch a glimpse of the revamped production, coming to a city near you.
The new Polly Pen-Victor Lodato musical begins performances February 12.
The Boston cast performs the newest version of the Stephen Schwartz musical, featuring additional numbers by Tony-winning rap artist Lin-Manuel Miranda.
The new Broadway musical also stars Lisa O'Hare and Lauren Worsham.
Sam Harris and Brenda Braxton were also on hand to perform from their future shows.
Original Jean Valjean Colm Wilkinson shared the stage with Karimloo in a Toronto performance of Les Misérables.
Jerry Seinfeld, Bernadette Peters, and Clive Davis were also on hand to cheer for Jessie Mueller and the cast of the new musical.