The Chemical Brothers are set to release a ‘best of’ compilation album this summer. ‘Brotherhood‘, which will feature two discs, is set to hit the shelves September 1. The compilation album will include 14 past singles as well as new track ‘Keep My Composure‘ which features Spank Rock. Disc two of the album will feature a series of tracks the band made under the name Electronic Battle Weapons for DJs to test in clubs.