The guys give a taste of what’s to come at the Michael Mayer-directed Broadway show, opening in April. By Eric Ditzian Green Day’s Billie Joe Armstrong performs with the cast of “American Idiot” at the 2010 Grammy Awards Photo: Michael Caulfield/ WireImage At the Grammy Awards on Sunday night (January 31), Green Day gave the world a preview of the musical based on their 2004 album American Idiot. Singing along with the cast of the show coming soon to Broadway, Billie Joe Armstrong and the band busted out “21 Guns,” a cut off 21st Century Breakdown for which they all recorded a special version
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Green Day Preview American Idiot Musical At Grammys






















