If you’ve been meaning to see American Idiot (a.k.a. “The Green Day Musicalâ€) but haven’t gotten around to it yet, make this the week! Billie Joe Armstrong, Green Day’s front man and lead guitarist, will play the role of St. Jimmy in the Broadway musical for eight performances, spanning from this Tuesday through Sunday evening. St. Jimmy (generally played by Tony Vincent, on a two-week leave from the show) is a “spectral character†who enables the drug addiction of lead Johnny (John Gallagher Jr.). Producers are no doubt hoping Armstrong’s appearance provides a boost to Idiot’s box-office returns; last week, the musical grossed $487,885, only about 37 percent of the maximum it could have made in that week. [ArtsBeat/NYT]