Green Day preview Know Your Enemy

First single from 21st Century Breakdown

Green Day preview Know Your Enemy

Green Day have posted 30 seconds of Know Your Enemy, the first single from their upcoming album 21st Century Breakdown, on their website.

While half a minute might not seem like much, in this case, it's enough to realize that this song delivers the goods.

Over a slamming drumbeat and a bare-knuckled, two-chord guitar intro, Billie Joe Armstrong sings, "Do you know the enemy/ do you know your enemy/ we gotta know the enemy, well, hear!"

The song's video will debut 24 April on MTV, MTV 2 and VH1.

Full album due in May

As MusicRadar previously reported, Green Day 's 21st Century Breakdown will receive a worldwide release on 15 May. It's the band's much-anticipated follow-up to their Grammy-winning, musical-theater-bound American Idiot.

Check out the preview of Know Your Enemy right here.