The program also features Gayle King as well as a performance from Platt, who will perform “Waving Through a Window” (including his scene with co-star Laura Dreyfuss), with piano accompaniment by Alex Lacamoire and a five-piece band.

The late-night talk show airs weeknights at 12:35 AM ET; check local listings.

After a sold-out Off-Broadway run, Dear Evan Hansen is currently in previews at Broadway's Music Box Theatre. The original musical, about one student's struggle for identity amidst the chaos of high school, features a score by the Tony and Emmy-nominated songwriting team of Benj Pasek and Justin Paul (Dogfight, A Christmas Story), a book by Obie Award winner Steven Levenson (Masters of Sex), choreography by Danny Mefford (Fun Home), and direction by three-time Tony nominee Michael Greif (Rent, Next to Normal, If/Then). The Broadway production is set to officially open December 4.

Check out footage from the musicals Off-Broadway's run below: