Billie Joe Armstrong in his final performance as St. Jimmy during the closing night of Green Day's "American Idiot" on Broadway at the St James Theater on April 24, 2011 in New York City.

Green Day’s new album Revolution Radio drops tomorrow (Oct. 7) and soon, we could be getting the film adaptation of their 2004 concept album American Idiot.

Speaking to NME, frontman Billie Joe Armstrong revealed the project is already underway and that he’s slated to play the part of St. Jimmy, in a reprisal of the role he occasionally played during the rock opera’s Broadway run.

“We’ve got a green light from HBO,” the singer-guitarist said. “The script is currently going through a couple of rewrites here and there, so I’m not sure when exactly we’re going to start shooting, but it’s definitely all systems go at the moment."

The Tony- and Grammy-winning Broadway production ran from 2010 to 2011, followed by an international tour.

The film adaptation was originally scheduled for release in 2013 under Tom Hanks' Playtone Productions. A year later, playwright Rolin Jones confirmed he was nearing completion of adapting American Idiot for the screen, with Michael Mayer -- who directed the Broadway version -- carrying over that role. It is not yet known who is filling these roles going forward, or if the project will see a theatrical release.

The American Idiot part wouldn’t be a first for Armstrong. He’s set to make his cinematic debut in the feature length comedy Ordinary World, which hits theaters Oct. 14. In it, Armstrong stars as a middle-aged punk rocker grappling with his lost youth alongside the likes of Selma Blair, Judy Greer and Fred Armisen.

The part of St. Jimmy, a supporting role, is that of a drug dealer who turns out to be within the persona of Johnny, the protagonist. Below, watch Armstrong play St. Jimmy during the Broadway production:

For more, check out Billboard’s track-by-track recap of American Idiot, the album.

A rep for Green Day had no further information on Armstrong’s interview. Request for comment from HBO was not immediately returned.