Bloc Party have posted a stream of their new single, "Mercury." The track follows their previous single, "Flux" another track which the band released independently of an album.

The band is working on their next full length, with frontman Kele Okereke commenting:

We're in the middle of it. we're still writing and working on it so it's quite hard to have an overview really, we are making the record i always wanted us to make so we just can't wait for it to be done.

You can check out the single on their myspace page.