Nettles, of country act Sugarland, will perform in the musical from Oct. 19 through Nov. 24. Sara Bareilles is currently in the role of Jenna through Oct. 17. Bareilles also crafted the music and lyrics for the show.
"Sara is a dear friend of mine and when Waitress first came out, I was so excited for her," Nettles told People. "Loved the project, loved the show, loved the material and wanted to be able to be a part of this beautiful legacy that my friend had created. But we were just never able to make it work in terms of timing. So to be able to now be a part of it, and this beautiful celebration of Broadway's reopening? It's just like, the stars have aligned. The right thing happens at the right time."