In an interview with The New York Times, Armstrong said that he hopes to work on the project with Michael Mayer, the director of the American Idiot Broadway production, which is based on the Green Day album of the same name.
"I think I’d be interested in the future of really getting into writing specifically for a show, that’s something I’d really love to do," Armstrong explained.
He added: "The kind of music that I like is very immediate and very catchy, and you identify with it quickly, and I try to write that way. And in musical theatre it’s the same thing - you identify with the songs immediately, the good ones anyway."
Armstrong did not offer any story details about the budding stage project.
The singer and Mayer also said that they are working on a movie version of American Idiot which could star Armstrong in the lead role of St. Jimmy.