Kelly will perform a number from the new musical on a popular TV show.
ABC will air a special to honor the 20th anniversary of Disney Theatrical Productions.
Colbert will help honor Tom Hanks, Lily Tomlin, and Sting, among others.
Find out the five musicals you'll get to see as you watch the event on November 27.
Watch NBC on November 27 to see some of your favorite Broadway stars in action.
The duo will appear near the end of the season.
The entire company for the upcoming NBC broadcast has been announced.