Singer-songwriter Sara Bareilles is writing the score for a musical adaptation of the movie Waitress that American Repertory Theater artistic director Diane Paulus plans to direct.

Diane Paulus approached Sara Bareilles for the project, and she started working closely with her on it last summer. Paulus describes Bareilles as “incredibly gifted” and notes that Sara is “really excited about writing for the musical theatre.”

Pulitzer winner Paula Vogel, who had initially been exploring ideas for the musical’s book, was unable to continue with the project due to scheduling conflicts, according to the ART. A book writer will be announced at a later date.

Sara Bareilles, Blessed Unrest