Billie Joe Armstrong and the Cast of American Idiot Party at Their 300th Performance

The cast of American Idiot may be all anger and angst onstage, but when the curtain came down on the January 8 performace, the energetic crew grinned widely as they readied to celebrate the show's 300th performance on Broadway. Green Day frontman Billie Joe Armstrong, who recently joined the cast for a limited engagement as seductive drug dealer St. Jimmy, was on hand to lead the festivities. Take a look below as the Idiots get rowdy on the St. James Theatre stage.