Julie Andrews will star in Julie’s Greenroom, a new preschool series from the Jim Henson Company about the performing arts, set to premiere on Netflix in 2017.

Andrews, who created the series with her daughter Emma Walton Hamilton and Judy Rothman-Rofe will executive produce and star as Ms. Julie — the director of the Wellspring Center for The Performing Arts in which she teaches performing arts workshops in the theatre and its “Greenroom.” Andrews will be joined by her devoted assistant Gus (Giullian Yao Gioiello) and kids known as “Greenies,” a cast of original character puppets built by Jim Henson’s Creature Shop. Over the course of the season, the kids create an entirely original new show, that is a mashup of all the performing arts including mime, music, dance, improv, circus arts, voice and more.

Most episodes will feature an original song and every episode will feature a guest star who engages the kids in a specific area of the performing arts, Netflix says. Confirmed guest stars include Alec Baldwin, Sara Bareilles, Joshua Bell, Tituss Burgess, Carol Burnett, Chris Colfer, Robert Fairchild, Josh Groban, David Hyde Pierce, Bill Erwin, Ellie Kemper, Idina Menzel, Tiler Peck, and Stomp.

Julie’s Greenroom began shooting this May in Long Island, New York. The thirteen 30-minute episodes will premiere globally on Netflix in early 2017.

Emma Walton Hamilton and Steve Sauer also executive produce, along with Lisa Henson and Halle Stanford for the The Jim Henson Company. Joey Mazzarino is co-producer and director, Tom Keniston is producer, and Bill Sherman is composer.

Gioiello is repped by CESD and Sweet 180.