Green Day preview Know Your Enemy

First single from 21st Century Breakdown

Green Day preview Know Your Enemy
30 seconds to a 'Breakdown'

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.