Check out the stars before they take the stage at the supper club.
Jeremy Benton, Hunter Ryan Herdlicka, and others will also be on hand to "Rise, Rise, Rise" at 54 Below.
Barbra Streisand, the subject of the solo send-up, plans to attend a performance during the L.A. run.
David Hyde Pierce directs Christopher Durang's Tony-winning comedy.
The concert marks Jackson's Birdland debut.
Hunter Foster and Justin Guarini are also among the list of the evening's special guest performers.
Christine Ebersole and more are set to replace the two-time Tony winner.