Terrence McNally's comedy is the first of play of the season to reach this financial landmark.
Both performers will step into their roles on January 7.
TheaterMania pays tribute to the late comedian with some of her best moments backstage at Broadway shows.
The two-time Tony Award winner makes her cabaret debut at 54 Below.
Finneran will play 54 Below later this week in her cabaret debut.
Broadway's Katie Finneran and the scantily clad Skivvies also join the Kinky group of performers.
Hinton Battle, Tamara Tunie, and Dee Hoty also took the stage to show off their work.
The Broadway musical also welcomed Kristin Chenoweth, Jane Krakowski, and Jim Dale, among others.
The Broadway and television actress will perform five shows at 54 Below this May.
Tony nominees Hunter Foster and Anita Gillette will also take the stage in the concert series' 12th installment at 54 Below this April.