Meryl Streep, Lilla Crawford, Emily Blunt, and more are featured in these new pics.
The evening will take place before the release of the new film adaptation of the musical.
Tony winner James Corden, who was expected to star, will be taking over for Craig Ferguson as the host of CBS' The Late Late Show.
Works by Stephen Sondheim, Ahrens and Flaherty, Maltby and Shire, and more join the theater's annual Musicals in Mufti series.
Mallory, who was 64, had been battling pancreatic cancer.
The previously announced tune has been removed from the final version, according to director Rob Marshall.
Jeremy Benton, Hunter Ryan Herdlicka, and others will also be on hand to "Rise, Rise, Rise" at 54 Below.
The Honyemoon in Vegas star enters the Sondheim musical at Virginia's Signature Theatre.