Furstenberg replaces original cast member Gayle Rankin.
The annual pet adopt-a-thon also welcomed Audra McDonald, Jessie Mueller, and a host of other Broadway favorites.
The Broadway musical also welcomed Kristin Chenoweth, Jane Krakowski, and Jim Dale, among others.
The John Kander-Fred Ebb-Joe Masteroff musical comes back to Studio 54.
Complete casting for the musical revival, starring Alan Cumming and Michelle Williams, has been announced.