GRAMMYS/
Billy Joe Armstrong of Green Day (C) and the cast of "American Idiot" sing "21 Guns" at the 52nd annual Grammy Awards in Los Angeles January 31, 2010. REUTERS/Mike Blake (MUSIC-GRAMMYS/SHOW) (UNITED STATES - Tags: ENTERTAINMENT)
Billy Joe Armstrong of Green Day (C) and the cast of "American Idiot" sing "21 Guns" at the 52nd annual Grammy Awards in Los Angeles January 31, 2010. REUTERS/Mike Blake (MUSIC-GRAMMYS/SHOW) (UNITED STATES - Tags: ENTERTAINMENT)