The show will also feature special performances to honor Joel Grey and John Kander, recipients of special Tony awards for lifetime achievement in the theatre.
"The hazardous air quality in New York City has made it impossible for a number of our artists to perform this evening," reads a statement from "Hamilton's" producers.
This pre-show leads directly into the Tony Awards, hosted by Ariana DeBose.
Two other musicals, Shucked and a Sweeney Todd revival, also win multiple awards.
The musical film also features Ciara, Danielle Brooks and Taraji P. Henson.
Julie Benko will step into the role in Michele's absence.
Today White House reception will also highlight the administration's efforts to combat the rising tide of antisemitism.
This is the second time in the past three years that external events have thrown the Tony Awards timetable into chaos.
Jeanine Tesori's music powers the acclaimed Kimberly Akimbo — and many of the best modern Broadway shows.
Broadway’s annual charity show is back for one night only June 18 in New York.
