Serious post-punkers Bloc Party will release a brand new single, 'One More Chance', on August 10.

The previously unreleased track, which was recored in April with producer Jacknife Lee (REM, U2), will be aired for the first time on Zane Lowe's radio show on Thursday June 18.

The band are also set to play the biggest ever iTunes festival at The Roundhouse in London on July 20, with supprt from Delphic and The Invisible, with free tickets available for competition winners. To lay your mittens on some, visit the itunes live website.