It's been five years since Green Day experienced a critical and
commercial re-emergence with its Grammy Award-winning "American
Idiot" album. The lead single from the band's new release, "21st
Century Breakdown" (due May 15), finds the group just as
politically charged as last time. "Know Your Enemy" sports a Modern
Rock radio-ready chorus, with its repetitive chanting of the title,
while producer Butch Vig brings enough punk/pop sheen for mass
appeal. While the subject matter is broad and may be missed by
some, "Enemy" has enough charm to amp up the airwaves until
"Breakdown" is released.